Summary

In Chapter 18, “The Murder Gene, Redux,” Dr. Vogel brings up the idea of a murder gene again during their next meeting. She needs DNA evidence because Klein might want to introduce that evidence as mitigation. Barber is offended by the suggestion but agrees to the test if it will help keep Jacob out of prison. Dr. Vogel tells him they also need to test Barber’s father but that he has refused to do so unless he is asked by Barber. Although Barber wants Dr. Vogel to tell his father to get lost, Dr. Vogel argues that they need the man’s help. If they get a court order, the DA will know what they are doing so the best thing to do is for Barber to ask for the DNA himself.

In Chapter 19, “The Cutting Room,” Barber walks uninvited into the...