In May of 2001, 49-year-old Leslie Preer was found brutally murdered inside her Chevy Chase home. For years, suspicion shadowed her husband, Sandy, who failed a polygraph and couldn’t explain his movements the night before her death. But one piece of evidence—male DNA under Leslie’s fingernails—told a different story.

Two decades later, a new generation of detectives reopened the case, armed with technology that didn’t exist back then. Using forensic genetic genealogy, they traced the unknown DNA to a name that stunned everyone: Eugene Gligor, a D.C. man who had once dated Leslie’s daughter, Lauren.

This episode unravels how Gligor lived freely for 23 years—attending recovery meetings, making friends, and even speaking kindly to Lauren years after the murder—while concealing the truth. We’ll follow the investigation from that first chilling crime scene through the groundbreaking DNA match, Gligor’s arrest and guilty plea, and the courtroom reckoning that finally brought justice for Leslie and cleared her husband’s name.

It’s a story about secrets that linger, the families left in their wake, and the detectives who refuse to let time silence the truth.

Because for every case like this one—where a killer is finally unmasked—there are thousands more still waiting in the dark. Thousands of families still waiting for the knock on the door that says, “We got him.”

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