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Your DNA Test Could Crack a Cold Case

Consumer DNA databases are a powerful new tool for police

Illustration: Wenkai Mao

LLike most people who take a 23andMe test, Georgia resident Jessi Johnson Still was curious about her ancestry when she spit into a tube and mailed it away to get her DNA analyzed.

After getting her results back, she uploaded her DNA data to a website called GEDmatch that lets…

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Emily Mullin

Emily Mullin

Former staff writer at Medium, where I covered biotech, genetics, and Covid-19 for OneZero, Future Human, Elemental, and the Coronavirus Blog.