A Bad Man Hurt Mommy On the Case with Paula Zahn : Season 25 Episode 12

Santee, California, May 2, 1988: Diane Dahn, age 29, was murdered when an intruder came into her apartment. She was stabbed to death in front of her own son Mark, who was age 3. Diane managed to grab a strand of the man's hair, which was put into evidence. The case had stops and starts but basically went cold for 30 years until the hair strand was submitted for DNA testing. There was no match in the Federal CODIS database, but the investigators were able to make a match using forensic genetic genealogy. However, the man who killed her, Warren Robertson, had died in ...