The story of the Liske Family murders. The son originally thought his family was playing a harmless Halloween prank, but the reality was the gruesome discovery of his murdered family members. 

Dubbed "The Candyman", Ronald O'Bryan exploited the urban legend of strangers poisoning trick-or-treat candy and killed his 8-year-old son, Timothy O'Bryan.  

The haunting story of Lisa Ann French and Gerald Turner - dubbed "The Halloween Killer" changed how we trick or treat forever.