On March 11, 2025, police arrested an 82-year-old man in Pinehurst, North Carolina, accusing him of a murder committed 46 years earlier. The breakthrough in the 1979 killing of Katherine Donaghue did not come from a confession or a tip. It came from a discarded plastic fork pulled from a trash can outside the suspect’s home, analyzed with forensic technology that did not exist when the crime occurred. Katherine Donaghue was 31 years old in March 1979, a secretary for a labor union who lived in Arlington, Virginia, just across the Potomac River from Washington, D.
C. She was unmarried, had no children, and was described by co-workers as reliable and easy to be around. On the evening of March 2nd, she joined a group of co-workers for dinner in Georgetown, a popular D. C.
neighborhood known for its restaurants and nightlife. She said good night, headed home, and never arrived. The next morning, a stranger walking through a parking lot in the 8400 block of Hamlin Street in Glenarden, Maryland, found her body. She had been beaten, raped, and strangled.
The location was significant: Glenarden sat on the opposite side of the D. C. region from Arlington, and investigators could find no connection between Donaghue and the area. Detectives concluded someone had brought her there.
Police collected biological evidence from her body and from her slip, an undergarment recovered at the scene. In 1979, DNA profiling did not exist in any usable form for criminal investigations, and the FBI’s national DNA database would not be built until the late 1990s. Without a suspect to compare against, the evidence sat in storage for nearly half a century. The man now accused of the murder, Roger Zotus Brown, had a criminal history that predated the killing.
In 1967, he was convicted of armed robbery and served 11 years in prison, being released around June of 1978, roughly nine months before Donaghue was killed. At the time of the murder, Brown lived in Hyattsville, Maryland, about seven miles from Donaghue’s neighborhood in Arlington. Investigators have said there was no known relationship between the two; as far as anyone has determined, they were strangers. Brown eventually moved to Pinehurst, North Carolina, a quiet golf community several hundred miles south of where Donaghue’s body was found.
He lived there without drawing attention, aging into his 80s while the case against him remained frozen. The case was reopened in 2024 when the Prince George’s County Police Department used funding from a federal program called Prosecuting Cold Cases Using DNA, administered by the Bureau of Justice Assistance. The cold case unit sent the preserved evidence to Othram, a private forensic DNA company based in The Woodlands, Texas, that specializes in a process called forensic genetic genealogy. Instead of matching DNA directly against a criminal database, forensic genetic genealogy builds a full genetic profile from crime scene evidence and compares it against public genealogy databases used by people building family trees.
Even if the suspect never submitted his own DNA, a distant relative might have. That relative becomes a thread investigators can pull to narrow the possibilities branch by branch. Othram scientists extracted a usable genetic profile from the old evidence and handed it to the FBI’s investigative genetic genealogy team out of the Baltimore field office. In late 2024, that team traced the DNA to a relative of the unknown suspect.
From there, investigators worked backward through the family tree, cross-checking names, ages, and locations until one name kept surfacing: Roger Zotus Brown. A family tree lead is not proof. Investigators needed Brown’s actual DNA to compare against the crime scene sample, and they needed it without tipping him off. So detectives watched his house in Pinehurst and waited for him to throw something away.
They recovered a plastic fork from a trash can outside his home. A used fork carries saliva, and saliva carries DNA. Courts have long treated trash left at the curb as abandoned property, meaning police do not need a warrant to test it. Technicians pulled a genetic profile from the fork and compared it against the DNA recovered from Donaghue’s body and her slip.
It matched. On March 11, 2025, officers from the Prince George’s County Police Department, the Moore County Sheriff’s Office in North Carolina, and the FBI’s Charlotte Field Office took Brown into custody at his home. Police described his reaction as solemn and cold, showing no visible surprise. The arrest was formally announced on March 18, 2025, at a press conference led by Prince George’s County Police Chief Malik Aziz alongside States Attorney Aisha Braveboy and FBI Special Agent in Charge Bill DelBagno.
Brown was charged with first-degree murder, rape, and related counts. Brown is presumed innocent until proven guilty. As of the most recent public information, his case had not gone to trial. His extradition hearing in Moore County, North Carolina, was scheduled for May 28, 2025, the legal step required to bring him back to Maryland to face the charges.
If convicted, he faces up to life in prison without the possibility of parole. Katherine Donaghue’s brother and sister are both still alive, both in their 80s, and both said to be waiting for the trial. In a statement released through police, the Donaghue family thanked investigators for what they called their relentless pursuit of the truth, saying it gave them a sense of closure they never thought possible after all this time. Police Chief Malik Aziz said at the press conference: “This case serves as a reminder that we will never give up seeking the truth, no matter how much time has passed.
” FBI Special Agent in Charge Bill DelBagno said justice was finally being served for Kathy and answers were finally reaching a family who had lost so many of the people who loved her most before this day ever came. Investigators have also said they are looking into whether Brown may be connected to any other unsolved crimes from the same time period. Nothing has been confirmed publicly on that front, but it is a standard step whenever a cold case suspect with a violent criminal history surfaces after decades. As of now, Brown remains in custody, presumed innocent, awaiting the legal process that will decide whether he is held responsible for what happened to Katherine Donaghue on a Friday night in March of 1979.
The case remains technically open until a jury reaches a verdict.