The local crab-wrapper gets it right:

Navy petty officer third class (Nathanial Leoncio) was on patrol with Marines in southern Ramadi on Oct. 4 when they were struck by a series of roadside bombs. The explosives killed one Marine and seriously injured three other men, including Leoncio.

At least two of the bombs detonated under the 6-ton Humvee that carried Leoncio, flipping it upside down and on top of him, severing his right leg just below the knee.

Although his right thighbone was shattered and he was bleeding internally, Leoncio refused to be evacuated. He ignored his wounds and cared for a severely injured Marine, likely saving the man’s life.

BZ, Corpsman.