Apparently Dean was a crazy bastard. The police had found him in the forest, half beaten up and mumbling how ‘the werewolf had escaped him.’ For anyone who didn’t know about the existence of the supernatural, it was crazy talk. Knowing about his background, they decided to ship him in a mental hospital instead of the prison. That was where he met you, his new roommate. Which also happened to know about the supernatural. Luckily he didn’t have to feel so alone in this. He had you to talk to.