In May 2001, a man named Eugene Gligor walked into a red brick home on Drummond Avenue in Chevy Chase, Maryland, and killed Leslie Prior, a woman who had treated him like family. It would take twenty-three years, a DNA match found through an ocean-crossing family tree, and a water bottle tossed into an airport trash can before anyone could prove it. Leslie Prior was fifty-three years old, an account executive at a small Washington advertising agency, and the kind of woman neighbors described as warm and generous. She had been married to her husband, Carl, known as Sandy, for nearly thirty years.

Their daughter, Lauren, was twenty-three and away at university. On the morning of May 2, 2001, Sandy kissed Leslie goodbye around 7:45 and left for work. A neighbor saw him go. Leslie was expected at her job by ten o’clock.
She never arrived. By ten-thirty, her boss was worried enough to call the house, then Lauren, then Sandy. Both men raced back to the house and arrived around 11:35. The front door was unlocked.
Inside, the foyer was covered in blood. A pool had congealed near the entrance, a small table was overturned, and a pizza delivery flyer was stuck to the floor, glued there by dried blood. Sandy ran through the house calling Leslie’s name. He found the family dog locked in the basement but no sign of his wife.
Police arrived minutes later and discovered Leslie’s body upstairs in the master bathroom, lying face down in the shower stall. The autopsy erased any hope of an accident. Leslie had seven deep lacerations on her head, wounds matching the sharp corners of the baseboard molding in the foyer. Her attacker had slammed her head into the floor repeatedly.
There were bruises from a violent struggle. She had been manually strangled, and the small bone at the base of her throat was broken, meaning she was still alive when the choking began. She fought hard. In that fight, she scratched her killer, tearing away fragments of his skin that would sit in an evidence bag for more than two decades.
After strangling her, the killer dragged her body upstairs, placed her in the shower, and turned on scalding hot water in an attempt to wash away evidence. He then went back downstairs and cleaned, wiping blood from walls, scrubbing the floor, and cleaning the kitchen sink, the downstairs bathroom, and the door handles. Forensic analysts later determined the cleaning products he used were not found anywhere in the house. He had brought them with him.
But he missed things: a drop of blood on the baseboard beneath the dining room window, a drop in the kitchen doorway, a smear on the inside of the back door. Investigators believed the killer may have still been inside when Sandy and Brett arrived, panicked, and fled through the back door. There was no sign of forced entry. Nothing was stolen.
Whoever did this had been let in. Leslie opened the door for her killer. Detectives immediately turned their attention to Sandy Prior. They pointed to the dried blood, noting it suggested Leslie may have been harmed earlier than Sandy’s timeline allowed.
They questioned the fact that he had not checked the bathrooms while searching the house. Twenty-two days after Leslie’s death, they brought him in for interrogation and pressured him for hours, telling him the evidence pointed to him and using his daughter’s grief as leverage. Sandy insisted he was innocent. He took a polygraph test and failed it, a result that poured suspicion on him for the rest of his life.
Even after DNA testing cleared him, proving the blood and skin under Leslie’s fingernails belonged to an unknown male, the whispers never fully stopped. Sandy Prior lived under that cloud until his death in 2017. His obituary said he never recovered from the loss of his wife. Lauren later said simply that he died of a broken heart.
The case went cold. For two decades, new detectives reviewed the file periodically and found nothing. A 2010 tip about a neighbor who had been oddly flirty with Leslie led to a DNA test that was not a match. In 2002, just nine months after the murder, a neighbor had called in a tip naming a young man named Eugene Gligor, who had been connected to the Prior family through his relationship with Lauren.
The original investigators never followed up. Eugene was never questioned, never asked for a DNA sample, never even spoken to. The tip sat in the file for twenty-two years. In 2022, the Montgomery County Police Department formed a cold case unit, and two detectives took over the investigation.
They decided to try genetic genealogy, a technique that had never been used in Maryland at the time. They submitted the preserved DNA from under Leslie’s fingernails to a lab, which conducted forensic-grade genome sequencing. The lab identified shared genetic markers with a distant relative living in Romania, someone who had submitted DNA to a commercial genealogy database. From that match, investigators spent two years building a family tree across continents.
Eventually, one of the detectives found a name that made her yell across the room: Gligor. The name was already in the original case file. By 2024, Eugene Gligor was forty-four years old, living in Washington, DC, and working as an account executive for a company that sold surveillance equipment. On paper, he looked like a success story.
He had gotten sober, attended recovery meetings, and donated to charity. Friends described him as warm and generous. But a former coworker said his calm exterior masked a bad temper and a superiority complex. One of his ex-wives had filed for a protection order alleging he punched walls during arguments.
As a teenager, he had been arrested for weapons possession, theft, and driving under the influence, and he had been listed as a suspect in multiple residential burglaries. None of those charges ever required a DNA sample, which is why he had remained invisible for so long. Detectives could not simply approach Gligor and ask for a sample. They needed a way to obtain his DNA without alerting him.
On June 9, 2024, Gligor landed at Dulles International Airport after a trip to Europe. Under the guise of a routine secondary screening, a customs officer pulled him aside and led him into a small room where several plastic water bottles sat on a table. Gligor grabbed one, drank it casually, and tossed it in the trash when he was free to go. An investigator pulled the bottle from the trash, bagged it, and sent it to the lab.
By Friday, the results were in. The DNA on the bottle was a perfect match to the DNA found under Leslie Prior’s fingernails and in the blood at three locations throughout her home twenty-three years earlier. Nine days later, a US Marshals task force arrested Gligor outside his DC apartment. During a twenty-four-minute interrogation, he played the victim, complained about his wrists and heartburn, and claimed to have no memory of the crime.
When detectives told him his DNA matched the crime scene, he stammered that he had never given a sample. They told him they had obtained it from a discarded water bottle. Gligor tried to cry, but the detective noticed there were no tears. He cycled through fake emotion, outrage, and self-pity, insisting he could not remember anything.
But he never said “I didn’t do it” until the detective pointed out that an innocent person would have said it immediately. Lauren Prior received the call that day. She remembered Eugene at her family’s dinner table, on beach vacations, at holidays. She remembered how her mother cooked for him and welcomed him into their lives.
She remembered bumping into him years after the murder, telling him what had happened to her mother, and Eugene hugging her and saying, “I’m so sorry. ” He had looked her in the eyes knowing what he had done. Her father had told her more than once over the years that something was off about that boy. She had always brushed it off.
He never lived to hear his words proven true. In May 2025, Eugene Gligor, then forty-five, pleaded guilty to second-degree murder. At the sentencing hearing, Lauren told him, “You took my angel. We let you into our lives.
A monster arrived right at the front door. ” She said, “You almost got away with it. And by the grace of God and prayer, my mother’s killer was caught. ” The judge sentenced Gligor to thirty years, suspended all but twenty-two, with five years of supervised probation upon release.
He will be almost seventy when he gets out. He has never given a motive, and he has never said why. The case was the first in Maryland to be solved through genetic genealogy. Sandy Prior died without ever seeing his name fully cleared, though the DNA had already proven his innocence years before.
Lauren Prior, who never stopped believing, now keeps a photograph of her parents and can say something different than she could for twenty-three years. We got justice.