The First 48 S08 E03 Obstruction; Flight Risk

Detectives are called to a shooting that has left a man dead. When a woman shows up to retrieve something from the scene detectives wonder if she knows more than she lets on. A man guns down a mother of two, a witness comes forward to tell detectives the man is headed for Mexico. With the help of the SWAT team, they attempt to cut him off before he can flee.