He's a cop. Trenton P.D.

CSI: Crime Scene Investigation: Season 7, Episode 15 "Law of Gravity" (broadcast Feb. 8, 2007) <br />When one Trenton cop is murdered in Las Vegas, a second Trenton cop threatens to expose a Las Vegas based, Trenton-born, crime scene investigator's past if the investigator doesn't make the case and the evidence go away.