The next potential killer on Vogel's list is A.J. Yates, who was institutionalized at 15. Vogel tried to channel his hostilities much as she did with Dexter but was unable to do so. When Dexter sees a huge scar on his head, he learns from Vogel that Yates had surgery to remove a brain lesion. He breaks into Yates' house and finds something interesting in the closet. Dexter isn't alone in the house however and it looks he may be their man. He also finds something that affects his relationship with Vogel. Dexter meets a neighbor, Cassie, from the next door apartment. ...