Her Daughter's Ex Boyfriend Did This to Her DNA Found in Romania Solved It 23 Years Later

Описание: On May 2, 2001, Leslie Preer was found beaten and strangled in her Chevy Chase home. She had fought back, trapping her killer's DNA under her fingernails. But for 23 years, that DNA matched no one. Her husband died under a cloud of suspicion, never knowing the truth.

Then, in 2024, a breakthrough: The DNA matched a distant relative in Romania. That thread led detectives back to a name hiding in the original 2002 case file. A name that made Leslie's daughter say: "Never in a million years did I think one of our people could hurt my mom."

The killer wasn't a stranger. He was her daughter's high school sweetheart.

This is the complete story of the Leslie Preer murder investigation—from the 2001 crime scene to the 2024 water bottle sting operation at Dulles Airport, and the historic genetic genealogy work that finally brought Eugene Gligor to justice.

⚠️ CONTENT WARNING: This video discusses murder and domestic violence. Viewer discretion is advised.


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🧬 THE BREAKTHROUGH: GENETIC GENEALOGY

This case marks a historic milestone as the first murder in Montgomery County, Maryland, solved using familial DNA and genetic genealogy.
*The Challenge:* Eugene Gligor had a criminal record (DUI, theft), but his DNA was never in CODIS because Maryland laws didn't require collection for those crimes.
*The Solution:* Detectives Augustin and Dupouy worked with Othram Inc. to build a family tree from the crime scene DNA.
*The Twist:* The closest DNA match was a first cousin twice removed living in **Romania**. This international thread led investigators to the Gligor family in the US.

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🔴 THE KILLER: EUGENE TEODOR GLIGOR

*Relationship:* Dated Leslie's daughter, Lauren, in high school (mid-90s). He was considered a trusted family friend.
*The Motive:* To this day, Gligor claims a "blackout" from drugs and alcohol and says he cannot remember why he went to Leslie's house that morning.
*The Sentence:* In August 2025, Gligor was sentenced to 22 years in prison for 2nd-degree murder.

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ABOUT THIS DOCUMENTARY:
In this episode of The Red String, we honor Leslie Preer, who "solved her own murder" by fighting back and preserving the evidence. We explore the tragedy of her husband Sandy Preer, who failed a polygraph and died under suspicion despite being innocent. We also analyze the investigative work that connected a water bottle at an airport to a 23-year-old crime scene.

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💬 COMMENT below: Do you believe Gligor really "forgot" the motive, or is he hiding a darker truth?

📚 SOURCES & RESEARCH:
Montgomery County Police Department & State's Attorney's Office
Sentencing Hearing Transcripts (State of Maryland v. Eugene Teodor Gligor)
Othram Inc. Case Files
ABC 20/20 "First Comes Love, Then Comes Murder"
NBC Dateline "A Perfect Spring Morning" coverage

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