S05 · E13

The Interrogation/The Slide

A 14-year-old boy is charged with the murder of his sister, but his public defender believes the police coerced the boy's confession and that the real killer is still on the loose. And two deteriorated medical examiner's slides, made in a murder investigation 16 years earlier, give police the evidence they need to reopen the cold case and bring the lead suspect to trial.