A terrifying pattern of crimes reveals the evolution of a calculated serial killer, raising questions over whether he ever truly stopped.

More than 50 attacks reveal a disturbing pattern, as the East Area Rapist uses fear and psychological intimidation against his victims.

Investigators explore whether the Golden State Killer tried to frame others, as new evidence potentially links him to the murders of two teenage girls.

Exposing the dual life of a family man who hid in plain sight.