Eduardo S. Silva, 25
Silva, and Army cook, died under mysterious circumstances in Afghanistan. His father said a military doctor in Delaware told him that he did not know how his son died. His son's ribs had been broken, he said, and the Army attributed that to the actions of paramedics who tried to save him. Silva was on his third tour of duty when he was found dead.
Sources: Times research, Defense Department, iCasualties.org