Ep 21. The Slip / Pure Victim

In Detroit, detectives investigate the double-homicide of two twenty-six-year-olds, shot execution-style in the basement. And in Harris County, TX, a 79-year-old woman is shot and killed while unloading groceries from her car. As the case unravels, investigators get a startling glimpse of the killer--a teenager with a long history of violence.