For 40 years, Heather Dawn Church's murder had no clear answer. Then investigators used a family-tree search to connect old crime-scene evidence to a suspect named David Anderson. Church was killed in Aurora, Colorado, in 1982. The case remained open while biological evidence was preserved, eventually allowing investigators to apply modern genetic genealogy to a mystery that had outlasted the original investigation. The video follows the DNA trail, the family connection, the identification of Anderson, and the limits of what genetic genealogy can prove in court. It is a focused look at how one forensic breakthrough changed a cold case. If you enjoy under-covered cold cases and evidence-led true-crime investigations, this case is for you.

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