The First 48: Temporada 12, Episódio 121

12 - 121:

An unidentified man is gunned down in the Southside of Louisville, Kentucky. With no ID on the victim and few leads, detectives are stymied. It takes an unexpected tip to crack the case. But if prosecutors hope to convict the man's killer they'll need to convince his three frightened codefendants to testify against him.