In 2012 Shermantine began to reveal the location of the bodies of his victims .
They were dubbed the Speed Freak Killers , due to their long history of methamphetamine use .
In 2012 Speed Freak Killers began to reveal the location of the bodies of Speed Freak Killers ' victims .
They were dubbed the Speed Freak Killers , due to their long history of methamphetamine use .