The First 48: Shell Shocked/Cradle to Grave

In Memphis, Sgt. Debo Carson and her team investigate the murder of a man shot dead outside of his house. The case takes a turn when a man investigators believe to be a witness becomes a suspect. In Dallas, a carjacking spree leaves one man dead. With only a general description of the getaway vehicle, a silver Infinity, Sgt. Larry Lewis and his team must pull out all the stops to track down the killers.