Unmasking a Killer - Season 1 Episode 2 -

How does one get away with 51 attacks and 12 murders while assaulting inside people’s very own homes? Delve into the creepy, sadistic methods of one of the worst serial killers of all time – the Golden State Killer. Find out his signature calling card and discover how law enforcement was able to link his crimes long before DNA. Don’t be afraid to be terrified.