Meanwhile Warrick receives a phone call to which he responds angrily, overheard by Hodges.Warrick later wakes up in a pool of blood draining from Gedda's corpse.He has a gap in his memory and is uncertain of his own innocence,especially as he is holding his handgun. He is arrested and accused ofmurdering Gedda while the gangster was handcuffed in the notoriousbarber's chair.

Internal Affairstakes over the case investigation including forensics. Workingindependently, the CSI team continues its investigation of the P.I.'sdeath, assuming the two cases to be linked, and uncovers evidence(including an unusual blood-splatter pattern on Warrick's shirt) thatexonerates Warrick and leads to the arrest of a molewithin the police department: the actual trigger-man who killed thegangster and framed Warrick. However, the CSI team suspects that thereis a higher-ranking mole lurking within the department.

Internal Affairstakes over the case investigation including forensics. Workingindependently, the CSI team continues its investigation of the P.I.'sdeath, assuming the two cases to be linked, and uncovers evidence(including an unusual blood-splatter pattern on Warrick's shirt) thatexonerates Warrick and leads to the arrest of a molewithin the police department: the actual trigger-man who killed thegangster and framed Warrick. However, the CSI team suspects that thereis a higher-ranking mole lurking within the department.

Warrick is released from custody and joins his CSI friends formerriment at a local watering hole. After saying his goodnights to hisfriends and picking up their bar tab, Warrick returns alone to his carparked in a dark alleyway where Undersheriff McKeenapproaches him and engages him in conversation. Warrick assures theUndersheriff that he and the team will not rest until they find thehigher-ranking mole. The Undersheriff catches Warrick with his guarddown, shooting Warrick in the neck and chest. The Undersheriff cleansthe gun and tosses it into Warrick's car, leaving Warrick for dead.