20/20

Blood and Water: 'Facts Don't Lie'

May 20, 2026·27 min·4-min readnarrativetrue crime
Podzilla Summary (4 min)
TLDR
This episode of Blood and Water reveals how new forensic genealogy technology led to a breakthrough in the 23-year-old unsolved murder of Leslie Preer, ultimately exonerating her husband Sandy, who had long been suspected but died before seeing his name cleared. The investigation’s shif

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Mentions

Books, people, and resources mentioned in this episode.

People

Leslie PreerSandy PrierLauren PrierTara AugustinAllison DuPoisEugene Gligor

Companies

CODIS

Products & Tools

Genetic genealogy

Topics

Cold CasesCriminal Justice ReformForensicsInvestigative JournalismTrue Crime

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