Come As You Are

S5 E10: When a Marine recruiter is murdered, the long list of suspects includes anyone who opposes the war in Iraq as well as fellow recruiters looking to eliminate the competition. However, Horatio uncovers a second murder when he finds hate mail sent to the victim from a soldier who thinks he may have killed his brother in combat. Meanwhile, Natalia must face her ex-husband again when he asks out one of her co-workers.