In November 2022, a film conservator in Portland called Detective Sergeant Ruth Alvarez of the Idaho State Police Cold Case Unit. The conservator had spent two weeks chemically processing a roll of Kodak Kodachrome 64 that had been sealed in an evidence envelope since 1971. The conservator had expected very little. Degraded archival film rarely survived five decades.
What emerged from the chemical bath, frame by frame, was a face. In the background of a field photograph, partially obscured by a rock formation, a man stood looking toward the camera. He had not posed. He did not know he was there.
Alvarez set down her coffee. “How many frames? ” she asked. Three.
Three frames with a face that could be worked with. To understand what those three frames meant, you have to understand who Maren Kowalski was and what she was doing in those mountains. In the summer of 1971, the Clearwater National Forest in North Central Idaho was dense conifer country, river valleys carved deep into basalt, the kind of landscape where you could hike for days without crossing a paved road. The nearest town of consequence was Orofino, a logging and mining community of about 3,500 people along the Clearwater River.
There was no GPS, no cell phones, only a two-way radio at base camp and a schedule of check-ins. When someone was late, you drove out and looked for them yourself. Marynelis Kowalski was 24 years old that summer. She was a field assistant with the University of Idaho geology department, working a summer survey contract mapping rock formations along three designated survey corridors, collecting core samples, logging her findings in the careful shorthand her supervisor had taught her.
She had grown up in Coeur d’Alene, the eldest daughter of Irena Kowalski, a Polish immigrant who had come to Idaho in 1952 with two suitcases and a seamstress’s skill. Maryn had been accepted to a graduate geology program at the Colorado School of Mines starting in the fall. She carried a 35 mm Minolta camera everywhere she went in the field. It was her second journal, she said.
She photographed everything she found interesting, rock faces, stream bends, wildflowers, and developed the rolls herself in the university darkroom. Her supervisor, Dr. Carl Bleeker, would say later that you could follow Maryn’s thinking through her photographs the same way you could follow it through her field notes. On the morning of July 19th, 1971, Maryn left base camp at the Brushy Fork Trailhead alone, which was not unusual.
She was surveying a two-mile corridor she had already partially mapped the previous week. She signed the camp log at 7:14 a. m. and noted her intended return time as 3:00 p.
m. She had her pack, her sample kit, her field notebook, and her camera. A second geologist, a graduate student named Tom Briggs, watched her head up the trail and turned back to his own work. By 4:00, she had not returned.
By 5:00, Tom had started up the trail himself. By 6:30, he had found her field notebook on the ground off the trail near a rock formation she had been documenting. Her sample kit was open, two core samples still in the collection tray. Her water bottle was there.
Her camera was not. She was not there. A search began at dawn the following morning. Forest Service personnel, Sheriff’s deputies, and volunteers from Orofino covered the corridor for four days.
On the third day, in a ravine approximately a mile and a half north of where the notebook had been found, Maryn Kowalski was found. She had been killed. The camera was not recovered. In her jacket pocket, zipped closed, was a single unexposed film roll in its factory canister, a spare she had been carrying for when the roll in the camera ran out.
The Clearwater Sheriff’s office opened a homicide investigation immediately. The lead investigator was a state detective named Howard Marsh, and he had very little to work with. There were boot prints near the scene, but several sets came from search volunteers who had moved through the area before the scene was properly secured. Trace physical evidence was collected and sent to the state lab, but the science of 1971 could do almost nothing with it.
Hair samples could establish broad characteristics. Blood typing could eliminate, not identify. The spare film canister found in Maryn’s pocket was logged into evidence and marked as unexposed, undeveloped, provenance unknown. What no one logged, and what Howard Marsh could not have known, was that the roll in Maryn’s camera, the roll she had been shooting that day with 22 frames already exposed, had been partially rewound by the camera’s mechanism when the camera was taken.
The roll had slid partially back into its canister. It was not the factory spare. It was the roll from the camera. Someone had taken a camera they did not understand and inadvertently preserved the evidence inside it.
In early August, a Forest Service contractor turned in a Minolta camera found along a logging road twelve miles from the trailhead. The camera was logged, examined for prints, none usable, and stored. The film inside was noted as partially rewound and placed in a separate evidence envelope marked undeveloped. The word written beside it in the evidence log was “presumed,” as in presumed damaged, presumed blank, presumed not worth the cost and effort of processing.
The roll sat in its envelope. The case moved forward without it. Howard Marsh worked the investigation for eighteen months. He identified and eliminated six persons of interest.
A seasonal worker with a prior assault conviction was interviewed three times; his timeline held. A transient seen near Orofino was located in Spokane; he had no vehicle and had not been in the back country. Marsh pulled permit records, talked to every ranger and contractor who had worked those corridors that summer. He was thorough.
He was persistent. He found no one he could charge. By the spring of 1973, the investigation had no momentum left. The file was not closed, but it was no longer being actively worked.
Marsh retired from Idaho State Police in 1981 without ever finding Maren Kowalski’s killer. He told a colleague the year before he retired that the Kowalski case was the one he thought about when he woke up at three in the morning. Irena Kowalski wrote her first letter to the Idaho State Police in the fall of 1978. She was 53 years old, her handwriting careful and clear, the writing of a woman who had learned English as a second language and took its precision seriously.
By 1985, she was writing twice a year. By 1990, her daughter Helena, Maren’s younger sister, had moved back to Coeur d’Alene to help care for her, because Irena’s eyesight had begun to fail. The letters went into the file. When there was something to say, a detective wrote back; when there wasn’t, a form letter went out.
In 2003, Irena Kowalski died at home in Coeur d’Alene at the age of 78. On the bedside table was the cedar box she had kept since before Maren disappeared, and inside it, among the things she had kept over the years, was Maren’s June 1971 letter about the Colorado School of Mines. Helena kept writing to the Idaho State Police. In 2019, the Idaho State Police Cold Case Unit assigned Detective Sergeant Ruth Alvarez to a review of fourteen open homicide files from the 1960s and 1970s.
Alvarez was methodical, patient with documents, comfortable with the distance between suspicion and evidence. She read the Kowalski file from the first page to the last, and then read it again, more slowly. What stopped her on the second read was the evidence log from 1971. A Minolta camera, logged August 3rd, and beneath it, in different handwriting, one film roll, partially rewound, undeveloped, presumed.
She found the camera in storage. The evidence envelope was attached. The roll was inside the envelope, still sealed, still in its canister. In 52 years, no one had sent it to a lab.
In 52 years, no one had revisited the presumption. Alvarez contacted a film conservator in Portland named Dana Strait, recommended by the Oregon State Archives as the leading specialist in degraded historical film in the Pacific Northwest. Strait was quiet for a moment and then told her the honest probability. Kodachrome was among the most stable color films ever manufactured.
If the roll had been stored sealed in a stable environment, there was a real chance something had survived. Not a certainty. A real chance. The roll was processed over the following two weeks using an analog chemical development process calibrated for aged Kodachrome stock.
What emerged, frame by frame, was 22 images, 19 of them field photographs, rock faces, stream channels, a lichen-covered basalt formation. Three images showed something else. In the background behind a rock outcropping, a man stood perhaps forty feet away, partially screened by the rock, his face turned enough toward the camera that the image was clear. Alvarez authorized facial reconstruction from the two best frames.
A forensic imaging specialist produced an age-regressed composite, what the face in the 1971 images would have looked like in the mid-2020s. That composite was run through genealogical DNA analysis. In parallel, biological evidence recovered from the original 1971 scene, preserved for five decades, was uploaded to a public ancestry database. The process identified partial DNA matches among people who had submitted genetic profiles for family history research, and traced those matches to a common ancestor, then forward to living relatives, narrowing to a specific family tree.
The tree narrowed to a family in the Clearwater County area. A man named Gerald Lund. Records confirmed Lund had been a seasonal Forest Service contractor working the Clearwater National Forest in the summer of 1971. He was 86 years old in 2023, living in a memory care facility in Boise.
He had a son in Garden City and two grandchildren. He had, by every account available, lived a quiet life for 52 years. Investigators obtained a DNA sample through a welfare check. A coffee cup handled by Lund during the visit was lawfully collected afterward.
The sample was compared against the biological evidence from 1971. It matched. The probability, as documented in the state crime lab report, was greater than one in one trillion. The man in Maren’s photographs was the man who had taken her camera, because he understood that the camera had seen him.
He had not known about the roll in her jacket pocket. The arrest of Gerald Lund took place on a Wednesday morning in March 2023. He was transported from the memory care facility by investigators and a physician who accompanied the team given Lund’s age and condition. He did not speak during transport.
He was charged with first-degree murder. His attorney entered a not guilty plea. Given Lund’s age and documented cognitive decline, legal proceedings were complex and prolonged. In the fall of 2023, a district court judge accepted a guilty plea entered on Lund’s behalf to a charge of second-degree murder and imposed a sentence of life in prison.
He would not be eligible for release. Helena Kowalski, Maren’s sister, 70 years old, the woman who had continued their mother’s letters for two decades after Irena could no longer write them herself, was present in the courtroom in Boise on the day the plea was entered. She sat in the front row of the gallery. She had brought the cedar box.
She did not open it. She held it in her lap through the entire proceeding, and when the judge read the sentence into the record, she looked down at the box and was still for a long moment before she looked up again. There is a photograph of Maren Kowalski taken by Tom Briggs in the weeks before she disappeared. It was taken at the Brushy Fork camp on a morning when the light came in sideways through the pines, and Maren is sitting on a camp stool with her field notebook open in her lap, her camera hanging from her neck, and she is laughing at something outside the frame.
She is 24 years old. She is three weeks away from the Colorado School of Mines. Gerald Lund had taken her camera because he believed it was the thing that connected him to what he had done. He was right about the camera.
He was wrong about what was inside it. For 52 years, Maren’s own photographs, her documentation of what she found worth recording, had been sealed in an envelope in a storage facility, waiting. She had photographed a killer without knowing it. She had preserved the evidence against him without meaning to.
The evidence in this case existed from the first day, sealed, intact, waiting, and was never examined. Justice came for Maren Kowalski after 52 years, not because a new technology emerged, but because someone finally looked at what was already there and asked what had been presumed.