The First 48: Inside the Tape

Killer Party / Night Walk / Pitbulls and Pistols / Left Alive  

In Tulsa, a late night party turns into a blood bath, but a Facebook video may help Detective John Brown dispute a suspect's claim that he wasn't there; In New Orleans, a man is robbed and shot multiple times on his payday.

A detective turns to a suspect fighting for his own life for answers about a fatal home invasion; the authorities investigate the deaths of two brothers and get a lucky break when a potential suspect decides to talk; a woman walk in on an intruder.

Detectives wonder if a shooter outside a church acted in self-defense; surveillance footage suggests that a convenience store shooter left DNA evidence at the scene of the crime; a detective looks for motive after a man is shot.