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 ...

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I woke up yesterday morning to the news that GEDmatch, the open-source genetic genealogy website, was instrumental in identifying Joseph James DeAngelo as the man suspected to be the serial murderer ...