sarcast sarcastic, something like hard on my ear. >> his dad was a violent dad. >> chapman's friend, chad hunter, witnessed the abuse when they were teens. >> mark's fathe would come out and used a closed fist. >> and punch him? >> yes, punch him in the face and in the stomach. he was violent. >> violence, he said, mark soon mirrored when they played army with toy soldiers. >> he would pull the arms off, he would talk to them and he would act like they were talking back to him. and a lot of times he would take a match and set one of them on fire. >> an extreme and vivid imagery life that journalist jim gains says chapman wrote about. let's talk about his notebook. what's this chief of staff and how he's made this diagram? >> so this -- these are the little people who run his life.