Jeffrey Dahmer was a Black Sabbath fan, while Richard Ramirez rocked out to Judas Priest, what music did these serial killers listen to?

As a society, we are fascinated by true crime, especially serial killers.
We watch documentaries and read books to try and understand what made these criminals carry out these evil deeds.
But, have you ever wondered what music these murderers listened to? Read on to find out...