ABC 20/20 After Show examines 2001 Chevy Chase murder of Leslie Preer solved by genetic genealogy
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Summary
The segment is a behind-the-scenes discussion hosted by Deborah Roberts with correspondent Stephanie Ramos about the 20/20 episode covering the 2001 murder of Leslie Preer in Chevy Chase, Maryland. It details the cold case, initial suspicions toward husband Sandy Preer, the daughter's perspective, and how two female detectives used genetic genealogy on fingernail DNA to identify the killer. Ramos describes interviews with Lauren Preer and the detectives, plus interrogation footage and the guilty plea leading to a 22-year sentence. The second part covers the emotional toll on the family, including Sandy's death in 2017 under a cloud of suspicion.
Editorial Assessment
The broadcast accurately recounts the timeline, investigative breakthroughs, and outcomes supported by public records and court proceedings. It provides helpful context on advances in DNA technology unavailable in 2001 and humanizes the victims without sensationalism. Viewers receive a clear picture of the resolution but miss deeper details on the original investigation tips or Gligor's full criminal history beyond substance abuse claims. Framing stays balanced on family trauma and justice delayed. Minor name spelling variations in the transcript do not impact credibility.
Key Moments
Leslie Preer was murdered in her Chevy Chase home shower in 2001; case unsolved for 23 years
Confirmed by court documents and multiple news reports; body found May 2, 2001.
Detectives Tara Augustine and Allison Dupo used genetic genealogy on unknown DNA to link to Eugene Gligor via Romanian relative
Matches ABC News reporting and police statements on the methodology and match.
Gligor, Lauren Preer's ex-boyfriend, was convicted and sentenced to 22 years
Pleaded guilty to second-degree murder; sentenced August 28, 2025 per court and news coverage.
Sandy Preer died in 2017 while still under suspicion
Widely reported in coverage of the case resolution and family impact statements.