Rodney Alcala is believed to have murdered over 100 innocent people… and he did it right in front of our eyes. The true story of the Dating Game Killer starring Guillermo Diaz and Carrie Preston premieres TONIGHT at 8/7c. Only on Investigation Discovery. | Investigation Discovery

Rodney Alcala was one of the most disturbing serial killers in U.S. history, known for his intelligence, charm, and ability to hide in plain sight. During the 1970s, he targeted women and girls across multiple states, often posing as a professional photographer to gain their trust. Behind the camera was a violent predator responsible for numerous murders, assaults, and disappearances, many of which remain unsolved to this day. What shocked the public most was that in 1978, Alcala appeared on the