the palm goes into the center of the chess on the sternum. >> and david bradbury says he didn't see anyad even attempted mouth to mouth resuscitation. >> the way that this woman had been beaten her face was swollen her face was bloody. i did not notice any blood on her mouth whatsoever. >> after arriving to the crime scene, investigators placed john in the back of the police car. and,, it was there they noticed something else on. detective teresa sterling. >> he was acting very upset, he was striking his knuckles on the screen in the police car. he was banging his head into the screen. he was acting bizarre. >> by that afternoon, police had taken the doctor down to the station. they took this close as evidence, and placed him in an interview room for hours on and, watching and keeping him on the surveillance camera. >> he was just not the victim spouts that we were seeing. he was more suspicion drawn each time that we watched something. >> when left alone in the room, hamilton seemed to be checking out his shoulder area. had he hurt himself? if so how? >> and when they found fetch scrat