Genetic genealogy, which involves uploading DNA samples to public genealogy databases to find distant relatives, has become a powerful tool for solving cold criminal cases. In the case of the Golden State Killer, investigators uploaded DNA evidence to a public genealogy database, which identified a distant family member and ultimately led to the identification of Joseph James DeAngelo as the suspect, demonstrating how genetic information can connect criminals to their families even when traditional identification methods fail.
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How DNA Finally Caught the Golden State KillerAdded:
Police were hunting a killer who for over 40 years seemed to not exist at all.
California, the 1970s.
No one had ever seen his face. No database could identify him. No name, no record. For decades, the case went cold until the world gave him a name, the Golden State Killer.
More than 40 years later, in 2018, investigators made a bold decision. They uploaded the killer's DNA to a public genealogy database. The DNA wasn't his.
It belonged to a distant family member.
And that led police to one name, Joseph James DeAngelo. A killer who thought he had vanished was found through his own family.
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