America's Most Notorious Cases: True Crime Documentary · 9 May 2026 · 13 min

Rex Heuermann Unmasked: How DNA Genealogy Broke the Gilgo Beach Case

For thirteen years, the Gilgo Beach serial killer case went nowhere — until forensic genealogy changed everything. This episode traces the full investigation: the victims, the failures, and the DNA breakthrough that finally put Rex Heuermann in handcuffs.

America's Most Notorious Cases: True Crime Documentary
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Rex Heuermann Unmasked: How DNA Genealogy Broke the Gilgo Beach Case

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What's covered

For more than a decade, the Gilgo Beach case looked like it might never move. Law enforcement had a stretch of highway, a cluster of remains, and almost nothing that pointed to a responsible person.

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