A Marine lance corporal, of Arabic lineage, the Islamic faith, and the Sunni tradition, dies two blocks from his mosque, in Anacostia in Washington, DC; Gibbs and company investigate. The local imam is the father of the victim; he begs Ducky, through respect for the Muslim religion, not to cut into the body, so that his son "can find peace in Heaven". Ducky and Palmer use an alternate method, and they get "an unexpected turn of events"; Ziva and the imam agree that too many deaths have occurred. Abby finds a residue of the most deadly natural neurotoxin on the Earth; Tony catches a jackrabbit bound for Paradise. A reserve personnel officer gives a tip, then justice prevails.