ATL Homicide - Season 4 Episode 20 Addonis Cunningham: Nacole Smith (2) Real detectives. Unreal stories.
Overview: Quinn and Vince get a lead on Nacole's case and learn about another cold case from 2005; solving these cases proves to be a test of patience, but as retirement draws near, the detectives begin to wonder if Nacole's case will ever be solved.