S16, E17: Was vengeance the reason behind the slaying of a private military contractor?--A private military contractor is found shot to death in his hotel room and Detectives Fontana (Dennis Farina) and Green (Jesse L. Martin) believe vengeance is the motive in a politically charged case that questions the reason America is at war. The detectives soon narrow their focus on a fellow commando Kevin Boatman (guest star Pablo Schrieber) and the younger brother of a man who was murdered by Iraqi insurgents while under the victim's questionable command. But as A.D.A. Jack McCoy (Sam Waterston) fights to keep a frightening video of the Iraqi execution out of court, he confronts unexpected political intrigue when more details are revealed about a recently captured terrorist. Annie Parisse, S. Epatha Merkerson and Fred Dalton Thompson also star.