A high profile man is murdered in his limo and after investigation, Greg learns that the victim had connections to a man he killed in self-defense. The CSIs uncover that the brother of the man killed in self-defense may be behind the limo murder.
Episode number: 7x19 Airdate: Thursday April 05th, 2007
"Big Shot" is an English slang term for a person of importance (or someone who believes themself to be such). It usually refers to someone with money, influence, or direct power over the world well in extreme of an "average joe".