On the afternoon of November 18, 1987, Jay Cook drove a bronze 1977 Ford Club Wagon onto a ferry in Victoria, British Columbia. His girlfriend, Tanya Van Cuylenborg, sat beside him. He was 20 years old. She was 18. They had been dating for six months, and this was their first trip together outside the country.
It was not a romantic getaway. Jay was going to pick up recycled parts for furnaces used by his father’s heating business in Seattle. The plan was simple: take the ferry to Washington, sleep in the truck near the shop, pick up the parts in the morning, and return to Canada. It was the most ordinary overnight trip imaginable.
The last time they were seen alive was at 10:16 p.m., when they boarded a ferry in Bremerton bound for Seattle. After that moment, Jay and Tanya vanished.
Six days later, Tanya’s body was found in a ditch beside a rural road in Skagit County, about 130 kilometers north of Seattle. She was not wearing pants. She had been raped and shot in the back of the head. She was 18 years old.
Two days after that, hunters found Jay’s body under the High Bridge in Monroe, Snohomish County, more than 100 kilometers from where Tanya was discovered. He had been beaten and strangled. A cigarette package had been shoved down his throat. He was 20 years old.
The killer left semen on Tanya’s pants and on her body. He left a palm print on the back window of the truck. He left plastic ties at all three crime scenes, a disposable glove, and ammunition matching the bullet that killed Tanya, all hidden under the roof edge of a bar in Bellingham.
He left enough evidence to convict him in any other decade. But this was 1987. DNA technology had been used in a criminal investigation only once in the entire world. Police had the killer’s DNA. They had his palm print. They had everything except a name.
It took 31 years, a detective who never gave up, a genetic genealogist who solved the case in two hours, and a trial with no precedent in the history of forensic science before the case was solved.
Jay Roland Cook was born on December 16, 1966, in Saanich, British Columbia, a quiet community on the southern peninsula of Vancouver Island. His father, Gordon Cook, owned a small heating business. It was a family operation. Gordon bought used parts and repaired furnaces, and Jay helped whenever needed.
Jay was not the type of young man who caused trouble. His mother, Leona, described him as dependable, the kind of son who, if he said he would be home at six, arrived at exactly six. He had loving sisters, including Laura Bownstra, who would later become the strongest voice for the Cook family in the fight for justice.
Tanya Van Cuylenborg was born on March 7, 1969, also in Saanich. She had just graduated from high school that summer. At 18, she stood at the threshold of the rest of her life. Her father, William Van Cuylenborg, was a quiet man who protected his children through presence rather than words. Her brother, John Van Cuylenborg, was a few years older and in university when the incident occurred.
Tanya was the type of person who never forgot to call home. If plans changed, she called. If she was going to be late, she called. It was not a rule imposed by anyone. It was simply her nature.
Jay and Tanya met through mutual friends at Saanichton High School and began dating about six months before the trip. Leona immediately recognized that Tanya was special to her son. They were a high school couple in a small town, a love story that anyone who saw them found warm.
The trip to Seattle was not a vacation. It was work. Gordon Cook needed recycled furnace parts from a company called Genesco Heating in Seattle, and Jay had made similar trips before. This time, Tanya accompanied him, perhaps to spend more time together, or perhaps because the trip seemed like a small adventure for two young people who had never traveled far together at night.
The plan was simple. Take the ferry from Victoria to Port Angeles in the afternoon, drive across the Olympic Peninsula, take the ferry from Bremerton to Seattle in the evening, sleep in the truck near Genesco, pick up the parts the next morning, and return to Canada. A tight circle within 24 hours.
On the afternoon of November 18, they arrived in Port Angeles around 4:00. From there, they drove across the Olympic Peninsula, a trip that took about two hours through forest roads in the dim November light. The last time Jay and Tanya were seen alive was at 10:16 p.m. when they boarded the ferry in Bremerton bound for Seattle. That ferry was supposed to deliver them to Seattle around 11:30 p.m. After that moment, no one knew where they went.
On the night of November 19, when Jay and Tanya did not return home and did not call, both families immediately knew something was terribly wrong. John Van Cuylenborg was at university when he received a call from his father. His father told him Tanya had not come home. His voice was enough for John to know this was not ordinary worry. He later recalled, “We didn’t know where they were or what happened to them.” Tanya would never go a day without calling home. Never.
On November 20, both families filed missing person reports with the Royal Canadian Mounted Police. But they did not wait for police to act. William Van Cuylenborg drove to Washington himself, tracing the ferry routes the couple might have taken. He checked the junkyards where Gordon Cook usually bought parts. He stopped at restaurants, gas stations, and shops along the way, asking anyone who might have seen two young people in a bronze truck.
He hired a small plane and flew low over rural roads and empty parking lots, hoping to spot the Ford Club Wagon from the air. He found nothing. John also drove to Washington, searching in parallel with his father. Two men, two cars, following the same route, asking the same questions at the same stations, getting the same answer. “No, we haven’t seen them.”
Four days passed in silence. Then came November 24. Tanya Van Cuylenborg’s body was found at the bottom of a shallow ditch beside Parsons Creek Road, near Alger, Skagit County, Washington, about 130 kilometers north of Seattle and 20 kilometers south of Bellingham. She lay on a hillside in a place that would never have been found if no one had looked. She was not wearing pants. She was not wearing underwear. Plastic ties, industrial ties, were found near the body, suggesting her hands had been bound.
The forensic examination confirmed she had been raped. One shot to the back of the head. Tanya Van Cuylenborg, the girl who had just graduated from high school in Saanichton, the girl who never forgot to call home, was dead. She was 18 years old. Jay Cook was still missing.
On November 25, 1987, while both families were still in shock from the discovery of Tanya’s body, two important pieces of evidence appeared about 20 kilometers north of where she was found, in the city of Bellingham. First, under the eaves of a small bar near the Greyhound bus station in the city center, police found a collection of items someone had tried to hide. The keys to the Cook family truck. Tanya Van Cuylenborg’s identification card. A number of bullets whose calibers matched exactly the bullet in Tanya’s head. More plastic ties of the same type found near her body. A disposable rubber glove.
Every item told part of the story. The keys said the killer had taken control of the truck. The identification card said he had handled the victim’s belongings. The ammunition said he had brought more bullets than needed for a single shot. The plastic ties said restraint was part of a plan, not a momentary reaction. The glove said he knew how not to leave fingerprints.
He was prepared. He had a method. And he hid everything under the eaves of a dark bar, a few steps from the Greyhound station, where a person could disappear on a night bus without anyone remembering their face.
On November 25 as well, police found the Cook family’s 1977 Ford Club Wagon. It was parked in a lot in downtown Bellingham, Whatcom County, near the Greyhound station, the same area where the items were found under the bar’s eaves. The truck had no external damage. There were no signs of a collision or a chase. Inside, police found more plastic ties. And they found what would become the most important piece of evidence in the entire case. Tanya Van Cuylenborg’s black pants.
The pants were inside the truck, left as if they were an item of no importance. But on the waistband, examiners found semen. That semen matched the sample found on Tanya’s body at the crime scene in Skagit County. The killer had made his first mistake. He left his DNA on the victim’s clothing, then left that clothing in the truck without destroying it.
Perhaps he did not know what DNA was. In 1987, most people did not. DNA testing had been used in a criminal investigation for the first time only in 1986, in England, in a completely different case. The technology was so new that most police departments in the world had never heard of it, let alone used it. The killer could not have known that a drop of semen on those black pants would wait for him for three decades.
But Jay Cook had not yet been found. Both families knew Tanya was dead. They knew the truck was in Bellingham. They knew Jay was not inside the truck. The question hung for another 24 hours until November 26, when hunters found his body. Jay Cook lay under the High Bridge on Crescent Lake Road in Monroe, Snohomish County, more than 100 kilometers from where Tanya’s body was found, and about 95 kilometers from where the truck was found in Bellingham.
He had been beaten. He had been strangled. A cigarette package had been shoved into his throat, not by accident, not by coincidence, but deliberately, as a message from the killer. Plastic ties were also found near Jay’s body, the same type found near Tanya and in the truck. Jay Cook, the dependable son of Gordon and Leona, who always came home on time, was dead under a bridge in rural Washington. He was 20 years old.
The crime scene was not a single point. It was four points spread across four counties in Washington State. King County, where Jay and Tanya boarded the ferry in Bremerton and where they were likely abducted in the Seattle area. Skagit County, where Tanya’s body was found in the ditch. Whatcom County, where the truck and hidden items were found in Bellingham. And Snohomish County, where Jay’s body lay under the bridge in Monroe.
Four counties meant four different police agencies, four jurisdictions, and four sets of investigators who had to coordinate on the same case without anyone truly having the full picture. This was a massive administrative challenge from the earliest days, and it would haunt the case for the next 31 years.
But in those first weeks, police had something most murder cases do not get. Distinct forensic evidence. DNA from semen on the pants and on Tanya’s body. Examiners created a profile they called “Individual A,” the biological identity of the killer even without knowing his name. A palm print, not a fingerprint, but a full palm found on the back window of the truck, from the outside, in a place where someone placed their hand while standing behind the vehicle. That print did not match anyone from the Cook family, the Van Cuylenborg family, or the couple’s friends. It belonged to a third person, someone with no legitimate reason to touch that truck.
Plastic industrial ties at all three crime scenes. Near Tanya’s body, in the truck, and near Jay’s body. Same type, same size, purchased from a store, brought by the killer. This told police the killer prepared in advance to restrain his victims. He did not use rope or torn fabric from the scene. He brought his own tools. Matching ammunition between the shooting scene and the hidden stash under the bar’s eaves. A disposable glove. The truck was moved to Bellingham and left near an intercity bus station as if he had boarded a Greyhound and disappeared into the night.
Every piece showed a picture of someone organized, planned, and methodical. He separated the two victims. He killed them in different ways, shooting Tanya and strangling Jay. He dumped the bodies in two locations more than 100 kilometers apart, both in remote rural areas that almost no one passed by chance. He drove the truck to a third town and left it in a parking lot near public transportation. This was not a spontaneous crime. This was the work of someone who thought ahead, acted systematically, and believed he was smart enough never to be caught.
He was almost right.
In the early days after Tanya’s body was found, while Jay was still missing, police did what they always do in such cases. They looked at the person closest to the victim. Jay Cook, the boyfriend, who was traveling with Tanya, who was driving the truck, and the last person known to be with her, became the first suspect. This is standard procedure. In most murders of women, the perpetrator is someone known, a boyfriend, husband, or former partner. Statistics say so, and police follow statistics.
Both families strongly rejected this possibility. Gordon and Leona Cook knew their son well. William Van Cuylenborg knew the kind of person his daughter loved. John Van Cuylenborg said plainly the idea was absurd. But police do not follow family feelings. They follow evidence. On November 24, when there was only Tanya’s body and Jay was still missing, that hypothesis was still on the table. Then came November 26, and hunters found Jay under the High Bridge. He had been beaten and strangled, with cigarettes shoved into his throat. The hypothesis that Jay was the killer collapsed the moment his body was identified. Both were victims. Both were killed by the same person, and that person was still free.
The case now sat with four agencies at once. The Snohomish County Sheriff’s Office handled Jay’s crime scene. Skagit County handled Tanya’s crime scene. Bellingham Police and Whatcom County dealt with the truck and hidden items. The Washington State Patrol coordinated overall, with assistance from the Royal Canadian Mounted Police.
They had good evidence. DNA from semen. A palm print on the truck. Plastic ties. Ammunition. A glove. They had the profile of “Individual A,” the biological identity of the killer. What they needed was a name to attach to that profile. They began searching.
In the months and years that followed, more than 200 names were placed on the suspect list. 200 men, each for a different reason, a history of violence, living near the crime scene, a record of sexual offenses, suspicious behavior at the time of the crime, or simply someone who filed an anonymous report. Every suspect was checked. Every suspect underwent DNA testing or fingerprint comparison. Every time, the result was the same. No match to “Individual A.” 200 hopes, and 200 disappointments.
One suspect taken seriously was Charles Sinclair, a name that made investigators spend more time and resources than anyone else. Sinclair was believed to be a serial killer operating across the western United States, the type of traveling offender the FBI calls a cross-country serial offender. A killer who crosses state lines, has no clear connection to victims, selects random targets, and keeps moving. The criminal psychological profile fit the Cook and Van Cuylenborg case. Two young victims attacked while traveling, separated from each other, killed in different ways, dumped in remote areas. But when Sinclair’s DNA was compared to the “Individual A” profile, there was no match. The most promising lead hit a dead end.
Then came the letters. In December 1987, just four weeks after the murders, right at Christmas, the Cook and Van Cuylenborg families received letters. They were not condolences. They were not anonymous tips. They were Christmas cards, the kind you send to relatives during the holiday. But inside were the most horrifying lines a grieving family could read. The writer claimed to be the killer. He described the murders in detail that no one could write unless they knew the case. Or someone who read the newspapers carefully enough to fabricate it. He boasted that he would never be caught. He threatened to kill again if given the chance. And he sent all of this in a Christmas card during the first holiday both families had to spend without their children.
John Van Cuylenborg later recalled, still shocked decades later, “It’s unbelievable to think that someone would not only commit these crimes, but would continue to harass the families with letters.” The letters did not stop after that first Christmas. The writer continued sending them for months afterward, each time with the same tone, proud, threatening, boastful. Investigators treated this as a top priority. If the writer was truly the killer, he was handing himself over through his need to boast. If he was not, he was a cruel harasser tormenting two families in deep pain.
It took years, but police eventually identified the letter writer. He was a man in his seventies at the time. Detective Jim Scharf stated plainly, “He is not a suspect. He denies any involvement, and there is nothing linking him to the crime scenes.” The letter writer’s DNA did not match “Individual A.” He was not the killer. He was just a sick man who found pleasure in causing more pain to others. While police spent time and resources tracking him, the real killer was still living somewhere, unnoticed and unsuspected.
Every false lead meant more time for the killer to enjoy his freedom. The core problem of the case lay in the very thing that should have solved it, DNA. Police had a complete DNA profile of the killer. In any later decade, that would have been enough evidence for conviction. But in 1987 and for years afterward, DNA was a tool that worked in only one direction. It could confirm or exclude a specific suspect, but it could not find a suspect on its own.
The American national criminal DNA database, CODIS, did not yet exist. When CODIS was created in the late 1990s, the “Individual A” profile was entered into the system and compared automatically and continuously. It never matched. The killer had never been arrested for any serious crime that would require his DNA to be taken and stored in the system. He lived outside the reach of the law, not because he was smarter than the police, but because he simply was never caught for anything else.
The palm print on the truck was the same, constantly compared to fingerprint databases, constantly yielding nothing. By around 1994, the case was officially closed as a cold case. No new suspects. No new evidence. No new technology to try. The original investigators moved on to other cases, retired, or simply ran out of places to search. The “Individual A” profile remained in an evidence locker. Tanya’s black pants remained in a sealed evidence bag. The palm print remained in the system. All of it waiting for a name no one could provide.
The Cook family and the Van Cuylenborg family returned to their lives, if they could be called lives, carrying the same unanswered question every day. William Van Cuylenborg, the father who hired a plane to search for his daughter, who traveled the border asking at every shop, continued living with the void Tanya left. John Van Cuylenborg continued his life but never stopped following the case. Leona Cook and her daughters never stopped hoping. Every year when the anniversary of Jay and Tanya’s deaths passed, the same question repeated. Who did this? Every year, the answer was the same. Silence.
Seven years passed. Then ten. Then fifteen. Police had the killer’s DNA sample. They had his palm print on the truck. They had plastic ties, ammunition, the victims’ clothing, and a complete criminal profile any prosecutor would dream of. They had everything for a conviction. They had everything except a name.
In 1995, eight years after the murders and one year after the case was officially closed, a detective at the Snohomish County Sheriff’s Office decided the silence had lasted too long. Jim Scharf was not one of the original investigators on the case. He arrived later, when the file was already thick with more than 200 excluded names and no one knew where to look next. Scharf helped create the Snohomish County Cold Case Unit, one of the first of its kind in Washington State.
The idea behind the cold case unit was simple but important. Old cases do not mean dead cases. They just need someone to look with fresh eyes, new tools, and especially the patience that investigators handling dozens of hot cases at once do not have. The murders of Jay Cook and Tanya Van Cuylenborg were among the first cases the cold case unit took on. Scharf read the entire file. He read the forensic reports. He read the list of 200 suspects. He read the threatening Christmas letters. When he finished reading, he said a sentence he repeated many times over the next 13 years. “This is probably our most horrific cold case.”
Horrific not because of the method of killing, though it was brutal enough. Horrific because of the overwhelming evidence, and because police had everything needed for a conviction, yet could not find the killer. The “Individual A” profile was still there, complete and detailed, but completely useless without a person to compare it to. Scharf realized this case would not be solved by traditional investigative work. Knocking on doors, interviewing witnesses, chasing suspects. All of that had already been done 200 times. This case would only be solved when science caught up with the evidence. And for science to catch up, the evidence had to remain available when that day came.
This is the point where a small decision, made in silence by people whose names the public would never know, changed the entire course of the case. In the early 1990s, a detective working on the case, a colleague they called “Dino,” looked at the DNA samples from the crime scene and made an observation that seemed at the time like pure instinct. DNA research was advancing rapidly, and one day technology would allow things that in 1990 still belonged to science fiction. He believed that if the DNA samples were preserved properly, the case could be solved in the future. Maybe 5 years, maybe 10 years, maybe more. He did not know when. He only knew that if the samples faded or degraded, the chance would be lost forever.
Dino made sure the DNA extracted from the semen on Tanya’s pants, from her body, and from the rubber glove was preserved according to proper procedures, sealed tightly, stored in the right conditions, and never removed from the evidence locker even after the case went cold. That was a decision no one wrote about in a newspaper headline, no one gave a medal for, and no one remembered for decades. But it changed everything.
Jim Scharf kept following the case for 13 years. He was the type of investigator who, when asked why he did not give up, did not answer with a speech. He answered with silence. And a look that showed the question meant nothing to him. He did not give up because he was not capable of giving up. Every time new DNA technology emerged, Scharf sent the samples for testing. Every time CODIS was updated with new criminal files, the system automatically compared “Individual A” to those files. Every time, the result was still no match. The killer was not in the system. He had never been arrested for any crime that would put his DNA on record. He was living an ordinary life, going to work as usual, returning home as usual, and no one around him knew that three decades earlier he had abducted, raped, and killed two young Canadians.
By 2017, 30 years after the murders, Scharf decided to try a path that had not existed before. He contacted Parabon NanoLabs, a private laboratory in Reston, Virginia, specializing in advanced forensic DNA analysis. Parabon was not an ordinary lab. They were developing a new technology called Snapshot DNA phenotyping, the ability to use DNA to predict a person’s physical appearance, eye color, hair color, face shape, genetic ancestry, even freckles and bone structure. From the killer’s DNA profile, Parabon produced a phenotype report. For the first time in 30 years, police could see a predicted face of the person who killed Jay and Tanya.
It was not a photograph. It was not a rough sketch from a witness statement. It was an image generated from the killer’s own DNA. Then Parabon used digital age progression technology to predict what he looked like in 2017, a man in his fifties, his white hair beginning to gray. That image was released at a press conference, and for the first time in three decades, the public could look at a face and wonder, “Do I know this person?”
But phenotyping was just the first step. The second step changed forensic history. In early 2018, CeCe Moore, the most famous genetic genealogist in the United States, was appointed head of genetic genealogy at Parabon NanoLabs. Moore was a pioneer in using DNA combined with genealogy research to identify people. She started by helping adoptees find their biological parents, and later helped police find people that traditional databases could not locate.
The Cook-Van Cuylenborg case was the first major case Moore took on at Parabon. Her method was simple in concept but complex in application. She took the “Individual A” DNA profile and uploaded it to GEDmatch, a free public website where hundreds of thousands of people around the world had voluntarily uploaded their DNA test results from companies like 23andMe, AncestryDNA, and similar services. People use GEDmatch to find distant relatives, build family trees, and explore family ancestry. It was a tool for people curious about their families. No one expected it to become a weapon for solving crimes.
The “Individual A” DNA produced partial matches with two people. Not siblings. Not parents. But second cousins of the killer, each from a different branch of the family. One from the paternal side, one from the maternal side. This type of result most investigators consider too distant and too vague to use. Second cousins share only about 3% of their DNA. That is a weak level of kinship, and the number of people who could fall between two second cousins in a family tree could reach dozens, even hundreds.
But CeCe Moore was not like other investigators. She began building family trees for these two relatives, working backward through generations, looking for the point where the two family branches, paternal and maternal, met in a single marriage. If she could find the couple from which both branches descended, their children would be the candidates for “Individual A.” She found the meeting point.
The two family branches met in the marriage of William Earl Talbot Sr. and Patricia Peters, a couple who lived in Woodinville, Washington, a small town east of Seattle. They had four children, three daughters and one son. The son’s name was William Earl Talbot II. CeCe Moore completed this entire process in two hours. 30 years of waiting, 200 excluded suspects, thousands of hours of investigation, and then a genealogist sitting at a computer found the name in two hours.
Think about that for a moment. The name William Earl Talbot II never appeared on any suspect list in 31 years of investigation. Not among the 200 names police checked. Not in any anonymous call. Not in any intelligence report or criminal file reviewed by the FBI or the Washington State Patrol. Detective Jim Scharf, who spent 13 years with this case, said plainly, “He was never on our radar.” That is exactly why the case could not be solved by traditional methods. You cannot find someone you do not know you need to look for.
But now CeCe Moore had the name. Police needed to confirm it with physical evidence before they could make an arrest. They could not rely on a genealogy result from GEDmatch alone. That was a directional tool, not evidence admissible in court. They needed direct DNA from Talbot to compare to the “Individual A” profile.
Police placed Talbot under surveillance. He lived in the SeaTac area, south of Seattle, and worked as a long-haul truck driver, a job he had held for decades. Neighbors, coworkers, friends, no one suspected anything. “Bill,” the truck driver, lived an ordinary life and caused no trouble. Investigators watched him, waiting for an opportunity that did not require a search warrant or asking him to provide a DNA sample. That might alert him and give him time to hire a lawyer. They needed something he discarded voluntarily.
The opportunity came in the form of a coffee cup. One day, while Talbot was working, a cup fell from his truck. An officer watching him collected the cup immediately, carefully packaged it, and sent it to the lab. Saliva was extracted from the rim of the cup and compared to the “Individual A” profile, the profile extracted from the semen on Tanya Van Cuylenborg’s clothing and body, the profile that had waited 31 years in an evidence locker. The result was a complete match. Not a partial match. Not a probability. A complete match. William Earl Talbot II was “Individual A.”
On May 18, 2018, investigators from the Snohomish County and Skagit County Sheriff’s Offices arrested Talbot at his workplace. He was charged with two counts of aggravated first-degree murder. At his first court appearance, bail was set at two million dollars. Snohomish County Sheriff Ty Trenary said at a press conference, “We never lost hope in finding the person who killed Jay and Tanya. Yesterday’s arrest shows the tremendous power of combining new DNA technology with the relentless determination of investigators.”
31 years. That is the length of time from the moment the bullet passed through Tanya Van Cuylenborg’s head to the moment handcuffs closed around William Talbot’s wrists. Elsewhere during that same period, another story was unfolding in parallel. A story in which Jim Scharf and CeCe Moore were only part. Around the same time as Talbot’s arrest, the same genetic genealogy technique was used to arrest Joseph James DeAngelo, the Golden State Killer, one of the most notorious serial killers in American history. DeAngelo was also identified through GEDmatch, and was arrested after DNA from an item he discarded matched a sample from a crime scene. Two arrests in the same month, by the same method, the same revolution. Forensic science would never be the same.
On a warm, beautiful May day in 2018, DeAngelo and his son were preparing to leave the house to visit relatives. They were literally about to walk out the door when the home phone rang. They let the answering machine take the call. The voice that came out was that of a former colleague of DeAngelo’s from the cold case unit. She said, “Dino, call me as soon as you can. The efforts to preserve the DNA in the Van Cuylenborg case have paid off. A complete DNA match has been found and an arrest has been made. Well done, partner.”
Dino was about 72 years old at the time. His son, in his thirties, stood in their kitchen watching his father. He later recalled, “I saw tears well up in my father’s eyes. I hugged him and he said, ‘May God give these children’s families some peace.’” Dino died one week later. His son believes his father could not leave this world until the case was solved. Every time the case came up over the years, Dino would go sit alone on the back porch for hours, silent, carrying the weight of what he had seen and what he could not change. Then that call came, the weight lifted, and he was able to leave in peace.
So who was William Earl Talbot II? He was born in 1963. At the time of the crime in November 1987, he was 24 years old. He lived with his parents in Woodinville, Washington, a small town east of Seattle, only 11 kilometers from the High Bridge in Monroe where Jay Cook’s body was found under the bridge. 11 kilometers, about 10 minutes by car on empty roads at night. He worked as a truck driver, a job that made him familiar with every rural road, every empty space, every remote bridge in the area. Exactly the kind of geographic knowledge the killer in this case clearly possessed.
Two years before the murders, in 1985, Talbot was convicted of a misdemeanor assault. A minor offense in the American criminal justice system, not serious enough for his DNA to be taken and stored in any database. That is why he never appeared in CODIS. That is why 31 years of automatic comparison never yielded a result.
After Talbot’s arrest, police interviewed his family and friends. The picture they painted was completely different from the image of Bill, the quiet truck driver his neighbors knew. Family members told police that Talbot had a history of violence since childhood. Information that completely contradicted what he later claimed in court, that he was not a violent person. Police believe Talbot and the Canadian couple were complete strangers to each other. No connection. No acquaintance. No mutual friends. No transactions. No reason for them to meet before that fateful night. This is the type of crime experts call a stranger crime, a random crime in which the perpetrator chooses victims based on opportunity rather than relationship. It is also the most difficult type to solve, because there is no link for police to work backward from.
The trial of William Earl Talbot II began in June 2019, more than a year after his arrest, in the Snohomish County Superior Court in Everett, Washington. This was not an ordinary trial. It was the first trial in the world in which a defendant identified through forensic genetic genealogy faced a jury. Before this, at least two suspects arrested by similar methods had pleaded guilty before trial, avoiding a jury. Talbot was the first to say, “I am not guilty.” And he forced the justice system to prove the charge.
That meant everything. The legality of using GEDmatch. The reliability of genetic genealogy as forensic evidence. The privacy rights of relatives who provided a DNA link without their knowledge. All of it would be tested in a courtroom for the first time. If Talbot was acquitted, the entire method could be called into question, and hundreds of other cold cases waiting to be solved by the same technique would be threatened. If he was convicted, it would set a precedent for every trial that followed.
Most of the prosecution’s case rested on circumstantial evidence, but together it formed a picture the jury could not ignore. Talbot’s DNA was found on Tanya Van Cuylenborg’s clothing and body. The semen sample from the black pants found in the truck matched exactly the semen sample from her body at the crime scene in Skagit County. Both matched exactly the saliva sample taken from the coffee cup. His palm print was on the back window of the truck. The print that had not matched any of the more than 200 suspects over 31 years now had an owner. And geographic proximity. Talbot lived in Woodinville, only 11 kilometers from the High Bridge where Jay’s body was found. A distance someone familiar with rural roads could cover in 10 minutes at night. He was a truck driver. He knew every road. He knew every bridge.
The prosecution did not have to prove how Talbot met Jay and Tanya. They only had to prove he was the person who left his DNA on the body of an 18-year-old girl who was raped and shot in the back of the head, and a handprint on the truck from which her boyfriend was taken and strangled to death more than 100 kilometers away. The evidence did the rest.
Talbot’s defense lawyers chose a strategy many in the courtroom found hard to believe. They did not deny the DNA existed. They could not deny it. The science was too conclusive. Instead, they argued that the semen on Tanya’s clothing and body was the result of a consensual relationship, that Talbot had sex with Tanya but did not rape her, did not kill her, and did not kill Jay. That the DNA proved sexual contact occurred, but sexual contact does not automatically mean rape or murder. That someone else, someone who left no DNA, killed both of them.
One juror later described that argument as astonishing. Tanya Van Cuylenborg, 18 years old, on a trip with her boyfriend, somehow agreed to have sex with a 24-year-old stranger she had never met before. Then that stranger left peacefully, and another stranger appeared, raped her again without leaving any DNA, shot her in the back of the head, strangled her boyfriend in another county, shoved cigarettes into his throat, dumped his body under a bridge, drove the truck to Bellingham, hid the evidence under a bar’s eaves, and then disappeared without a trace. And that Talbot’s palm print on the truck was just a coincidence.
The jury deliberated for two and a half days. On June 28, 2019, they returned to the courtroom. Guilty. Both counts of aggravated first-degree murder. Unanimously. 12 jurors, one voice.
On July 24, 2019, Talbot was sentenced to two consecutive life sentences without the possibility of parole. In the courtroom on sentencing day, Laura Bownstra, Jay Cook’s sister, who had carried this burden for more than half her life, said, “By not taking responsibility, Talbot made an entire new generation live his terror.” She thanked God that Talbot was finally off the streets.
CeCe Moore, the genealogist who found his name in two hours, told ABC News, “The conviction and sentencing of William Earl Talbot II represents a new era for the use of genetic genealogy to identify violent criminals, because this method has now been tested and proven effective in court.” That is the truth. “This was the first jury conviction in the world based on forensic genetic genealogy.” Every subsequent trial using a similar method looks to the Cook-Van Cuylenborg case as a legal precedent.
But the story did not end there. Talbot appealed the verdict, and the case entered a legal journey that lasted several more years. In December 2021, the Washington Court of Appeals overturned both convictions. The reason was not weak evidence or the illegality of the genealogy method. It was juror bias. One juror, Juror 40, had repeatedly expressed concern during jury selection that she was not sure she could be fair. She grew up in a family that suffered from violence. Her mother was a victim of domestic violence, and she had just given birth. The case involved the rape and murder of a young woman. Exactly the type of crime that could trigger bias in someone who had experienced those traumas. The appeals court ruled she had not been adequately rehabilitated after those clear statements of bias.
The news spread like lightning. The Cook and Van Cuylenborg families, after more than 30 years of waiting, faced the possibility of going through it all again. But exactly one year later, on December 22, 2022, the Washington Supreme Court issued a unanimous ruling, reversing the appeals court decision and reinstating the convictions. The Supreme Court found that Talbot had no right to object to Juror 40’s presence because he did not use his peremptory challenges against her, did not exhaust his challenges against other jurors, and accepted the jury as presented. The case was returned to the appeals court to consider remaining arguments not addressed in its first review.
In December 2023, the appeals court reviewed all matters, the sufficiency of the evidence, the effectiveness of the defense, the conduct of the prosecutor, and upheld the convictions. Talbot continued to appeal, but his legal foundation was weakening each time. He remains in the Washington State prison system, maintaining his innocence.
While the justice system dealt with the appeals process, time quietly stole the chance to see justice from those who deserved it most. William Van Cuylenborg, the father who hired a plane to search for his daughter, died in 1997, 10 years after Tanya was killed, 21 years before Talbot was arrested. He never knew who killed his child. Tanya’s mother lived longer, but she also died in 2020, having witnessed the 2019 conviction but not living to see it withstand the appeals. John Van Cuylenborg, Tanya’s brother, became the one who carried the family’s memory for more than three decades. From the day he received his father’s anxious call as a university student, to the day he sat in the Everett courtroom and watched the man who killed his sister be convicted. Leona Cook, Jay’s mother, lived to see justice achieved, and Laura Bownstra became the Cook family’s voice before the media and the courts.
The legacy of the Cook-Van Cuylenborg case extends far beyond the boundaries of a single criminal case. It proved that forensic genetic genealogy can withstand a jury. That the method is reliable enough to convict someone of murder even if they are not in any criminal database. Since the Cook-Van Cuylenborg case and the Golden State Killer case, hundreds of cold cases in the United States and around the world have been solved by the same method. Killers who thought time had erased their tracks discovered that a distant relative they had never met, someone who spat into a tube and sent it to 23andMe out of curiosity about their ancestry, had unknowingly provided the thread that led police to their doorstep.
That in itself opened a debate that still has no final answer. Privacy. Talbot’s cousins, the people who uploaded their DNA to GEDmatch to find relatives and explore family ancestry, never agreed to have their DNA used in a criminal investigation. They did not know their saliva would lead police to a relative they may never have met. When someone uploads their DNA online, it means their entire extended family, siblings, cousins, nieces, nephews, grandchildren, can be identified whether they want it or not.
Supporters say this is a small price to pay for justice. That the privacy of one family cannot be placed above the right to life of two young people killed in a ditch and under a bridge. Opponents say that when police can work backward from your DNA without your consent, the line between investigation and surveillance becomes dangerously blurred. Both sides are partially right. And that debate, in a sense, is also the legacy of Jay Cook and Tanya Van Cuylenborg.
On the afternoon of November 18, 1987, a bronze 1977 Ford Club Wagon boarded a ferry in Victoria. Inside were a 20-year-old man and his 18-year-old girlfriend, on their way to pick up parts for his father’s furnace. They never came home. But someone kept a DNA sample for three decades. Someone did not give up for 13 years. Someone sat at a computer and found the name in two hours. And 31 years after the bullet passed through Tanya Van Cuylenborg’s head, 12 jurors in Everett, Washington, spoke the single word two families had waited half a lifetime to hear. Guilty.