The First 48: Season 4, Episode 16

4 - 16: Houdini / Innocence Lost

In Memphis, a gas station clerk is shot in an armed robbery. The clerk hits the store's panic button, locking his killer inside. Moments later, the clerk dies from his wounds. When Sgt. Kevin Lundy arrives on the scene, the store is sealed, with no way out, and the killer is gone.