True Crime Tuesday: Oz Exclusive: How Genealogy Cracked the Case of the Golden State Killer

How could a man get away with 13 murders and over 50 rapes with so few clues about his identity? Dr. Oz and Crime Online founder Nancy Grace discuss the details of the grisly crimes that went unsolved for 40 years; How DNA Helped Crack the Case; 5 Fascinating Times Medical Evidence Solved a Crime; Nancy Grace’s True Crime Investigations Video Series