He and his girlfriend killed 11 people on a two-month killing spree while he was a teenager for which he was executed.
He developed a fixation with James Dean after seeing 'Rebel Without a Cause,' and started dressing like him.
His girlfriend's parents and two year-old sister were among the first people he murdered.
His girlfriend Caril Fugate accompanied him on his crime spree, though she claims she was held hostage.
He committed crimes with his girlfriend, like criminal Clyde Barrow.