Law & Order: Criminal Intent Season 6 Episode 14

Flipped

After Fulla T, a local rapper who was encouraging his fans to report crimes when they heard about them, is murdered outside a radio station, Logan and Wheeler find themselves reluctantly partnered up with Harry Williams, a detective from the gang unit. Wheeler is willing to give Williams the benefit of the doubt, but when their witness begin to turn up dead or missing not long after Williams learns they're looking for them, Logan begins to wonder just what side of the law Williams is really on.