Cracking the code: Building the family tree of a serial killer

Retiree Barbara Rae-Venter never anticipated that her hobby of researching her family tree would lead to the capture of one of the most notorious criminals in California, the Golden State Killer. A pioneer in the use of genetic genealogy, Rae-Venter has since become an important partner for investigators seeking to solve cold cases. "48 Hours" correspondent Erin Moriarty reports. "CBS News Sunday Morning" features stories on the arts, music, nature, entertainment, sports, history, science and Americana, and highlights unique human accomplishments and achievements. Check local listings for "CBS News Sunday Morning" broadcast times. Subscribe to the "CBS News Sunday Morning" YouTube channel:    / cbssundaymorning   Get more of "CBS News Sunday Morning": https://cbsnews.com/sunday-morning/ Follow "CBS News Sunday Morning" on Instagram:   / cbssundaymorning   Like "CBS News Sunday Morning" on Facebook:   / cbssundaymorning   Follow "CBS News Sunday Morning" on Twitter:   / cbssunday   Subscribe to our newsletter: https://cbsnews.com/newsletters/ Download the CBS News app: https://www.cbsnews.com/mobile/ Try Paramount+ free: https://paramountplus.com/?ftag=PPM-0... For video licensing inquiries, contact: [email protected]