@CNN: It started as a hobby. But now they’re using DNA to help cops crack cold cases. https://t.co/RQFTdpmzAZ https://t.co/fJtOTE9VXt
It started as a hobby. But now they're using DNA to help cops crack cold cases. https://t.co/RQFTdpmzAZ pic.twitter.com/fJtOTE9VXt
— CNN (@CNN) August 3, 2018