The First 48 (2004) : 6x16

In Miami, a mechanic is shot to death in his shop. Detective Juan Hererra and his team focus on the victim's everyday habits to find a reason why someone would want him dead. In Dallas, a young, small-town farmer is murdered while trying to buy a used car. With only a nickname to go on, Detective John Palmer and his team need to track down the car's seller to help them find their suspect.