NCIS S09E19:

The Good Son

IMDb 7.9 60 min/episodeRelease:2003
While on liberty in Baltimore, Maryland, a boatswain's mate second-class dies of a stab wound; Gibbs and company investigate; the prime suspect is a brother-in-law of Vance. The team persist, Abby solves the case, and they nab the bad guy.