The First 48 - Season 6 Episode 10 Double Life
Overview: In Miami, Detective Ricardo John discovers a man stabbed to death behind an abandoned church. With no identification, the investigation hinges on identifying the victim through his fingerprints. When John finally gets a name for his victim, he is running out of time. In the final hours, John finds out that the victim has a surprise up his sleeve that throws the investigation into a tailspin.