Once a Hero (S04E08)

The NCIS team investigates when an honored Marine veteran falls to his death at a hotel. After determining his death was not a suicide, the NCIS team discovers that the Marine was homeless, living at the hotel with the help of a maintenance man who was a fellow vet. But when compromising evidence is found in the Marine's room, Gibbs becomes determined to clear his name and prove his innocence. (CBS TV Network)