High and Low

Grissom, Nick, and Warrick are sent to the scene when a man was murdered and shoved off of a six-story building, but discover that he actually fell even farther than that. Grissom needs to take himself off of the case when he begins to suffer from a re-occurrence of his hearing problems. Elsewhere, Catherine investigates the shooting death of a man who was killed outside of a bar where he was a regular.