When Jane Johnston dumps ex-con Karl Knapp after years of abuse, he goes on a rampage. Furious, drunk, and coming off a drug binge, Knapp shows up at her workplace and guns her down, along with two other innocent people. After a standoff with a SWAT team, Knapp is arrested and sentenced to 76 years in prison. Was this crime an act of desperation or a cold-blooded murder? Criminal Psychologist Dr. Michelle Ward goes behind prison walls to speak with Knapp and uncover the truth.