November 12, 2015 6:05 pm Elite Sentinels Guard Tomb of the Unknowns Meet the sentinel guards who watch over Arlington National Cemetery’s Tomb of the Unknowns. A News4 special report by Beth Brown. Local 3:36 DC officer shot near police station in Northwest, rushes inside for help 2:38 Cargo ship that destroyed Key Bridge pulled back to Port of Baltimore 1:07 Cargo ship that crashed into Baltimore bridge moving back to port 0:43 See It: Cargo ship that brought down Key Bridge towed back to port 3:21 Crews working to refloat Dali cargo ship