Sgt. Rick Zimmerman and Sgt. Tammy Diedrich process the victim's car, hoping to find more evidence against their suspect.
New Orleans Detective Ryan Vaught investigates a gruesome and horrific murder: a grandmother and her four-year-old grandson shot in her bedroom, leaving the grandmother dead and the four-year-old struggling to survive.
In Tucson, a young man is found shot to death on the street. And in Memphis, Sergeant Debo Carson investigates the brutal murder of a woman whose body was found dumped on the railroad tracks.
In New Orleans, a woman is executed in broad daylight, and Detective Chuck Ward discovers she may not be the killer’s first victim. But can he find a witness willing to step up before more blood is shed?