Los Angeles can be a dangerous city - never more so than in the dead of night.
Two cases: a brutal assault, and a multiple murder with no suspect..
And tonight is the worst yet.
Some nights are worse than others.
Detective Renee Ballard, once one of the department\'s young hotshots, now works \'The Late Show\', the notorious graveyard shift at LAPD.
Los Angeles can be a dangerous city - never more so than in the dead of night