SACRAMENTO, Calif. -- Investigators have revealed they used a public genealogical DNA database to find the ex-policeman they believe is a shadowy serial killer and rapist who terrified California ...

Just two years ago, GEDmatch was still an obscure genealogy website, known only to a million or so hobbyist DNA sleuths looking to fill in their family trees. The site was free, public, and run by two ...

While frustrated California detectives looked fruitlessly for a man accused of brutally raping 45 women and killing a dozen more people, one of his relatives was likely busy seeking information to ...