Bones season 1 episode 13
Episode title: The Woman in the Garden
Booth and Brennan investigate when a dug up corpse is found in the back of a gang member's car. While being questioned, a drive-by shooting allows him to escape. Booth and Brennan follow the clues, which lead them to an empty grave and another body in a grave at a wealthy senator's house, where the gang member used to work.
