Rodney Alcala seemed charming, intelligent, and ordinary—but behind that façade was one of America's most notorious serial killers. Nicknamed "The Dating Game Killer," he appeared on a popular TV dating show while carrying a horrifying secret. His double life, elusive crimes, and decades-long trail of victims make his story one of the most chilling and unsettling true crime cases in modern history.

Sources: People Magazine Investigates: Surviving a Serial Killer, YouTube, Wikipedia, FBI Archives