CrimeDoor is a new AR mystery app that allows users to look at cold case files. Find out how to use the app and its groundbreaking tech.
The Golden State Killer left threatening, creepy voicemails on his victims’ answering machines. Here's what we know about the case.
True crime fans, program your DVRs. The Oxygen Channel has the marathon you've been waiting for: 12 Dark Days of Serial Killers.