The Search Begins
Holes, one of McNamara's former associates and a professional detective for Contra Costa County, happened to have a background in biochemistry. With nothing left to lose, Holes uploaded DNA samples from the Golden State Killer to the public database GEDMatch. What Holes and his colleagues uncovered stunned them beyond words...
Looking for the Killer
Holes found several individuals with the same great-great-great-grandparents as the Golden State Killer. One after another, Holes and his team narrowed down the list, scouring every record they could get their hands on to compose a family tree.
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