NCIS - Season 4 Episode 12 -

When a high-level Marine intelligence officer is found murdered in a small motel room, the NCIS team must find the person who murdered him. After discovering that the person was already dead for three days, and that the town authorities had "investigated" the crime, Gibbs is determined to solve the case, which could be related to a terrorist cell, and not let the town authorities get in his way.