44 years later, a discarded cigarette did what decades of paperwork couldn’t.
According to CNN, DNA on Sarah Geer’s clothing (killed in Cloverdale, California in 1982) was matched via genetic genealogy; a jury convicted James Unick, 64, on Feb. 13.
Turns out the future keeps receipts. 😼

DNA Technology Convicts a 64-Year-Old for Murdering a Teenager in 1982 - Slashdot
"More than four decades after a teenager was murdered in California, DNA found on a discarded cigarette has helped authorities catch her killer," reports CNN: Sarah Geer, 13, was last seen leaving her friend's houseï in Cloverdale, California, on the evening of May 23, 1982. The next morning, ...