NCIS Season 6 Episode 19

Navy Commander Mike Taffet's wife Hillary finds a bloody gun in their preteen son Noah's room. It was used in a neighborhood murder years ago, returned by NCIS after the trial and used in at least one recent crime. The team painstakingly gets the boy and his buddies, Travis and Zane, to show how they got it, and what they know about the recent murder. But forensics and interrogations come up with additional plots and some links.