Joseph Patrick Kelly

The team is able to come up with some lead suspects in the serial murderer cases, but when their suspects are murdered, Grissom begins to suspect an inside job and suggests that a cop might be the leak, upsetting Detective Brass.

A high-speed police chase ends with the discovery of a severed head in the stolen car. Later, a headless corpse is discovered in the desert and the CSI team get to work seeing if the two cases are connected.

Grissom investigates the brutal death of a jogger, apparently killed by a large animal. Catherine becomes convinced that a young girl's death at an amusement park was no accident.

A federal marshal is killed in a car bomb explosion, and Warrick and Sara investigate the death of a famous singer's wife.

Private information about Grissom's personal life comes to light during a troubling investigation of a local deaf man who was killed in an automobile accident.

Grissom determines to find out the truth behind a robbery in which five people were shot dead in a case involving his nemesis, Officer Fromansky.