In the last episode of Just Science, Dr. Barbara Rae-Venter shared her techniques for creating family trees and discussed the resolution of her first cold case. In episode five of the DNA season, we continue that conversation.

In February 2017, Forensic Magazine published an article detailing the Bear Brook Murders, an abandoned girl, and Rae-Venter's involvement in the resolution of a cold case that tied them all together. One month later, she was contacted by investigator Paul Holes and was on the hunt yet again. Listen along as she discusses building a profile and explains how she used investigative genetic genealogy to identify the Golden State Killer.

This season is funded by the National Institute of Justice’s Forensic Technology Center of Excellence.