In April 2018, California authorities revealed that they’d used a novel investigative technique to arrest a man they called the Golden State Killer, a serial murderer who’d escaped capture for decades.
For the first time, police had submitted DNA from a crime scene into a consumer DNA database, where information about distant relatives helped them identify a suspect, NBC News reported.
The announcement kindled a revolution in forensics that has since helped solve more than 50 rapes and homicides in 29 states.
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