Captain Humayun Khan was the leader of an infantry company. He was killed in Iraq in 2004 when a car blew up after he told his troops to stand back. He took 10 steps forward to check out the suspicious vehicle himself, saving the lives of the soldiers he supervised.
Say what you want about the father for politicizing his son's death, but the son was a hero.
Soldier Khan is a hero. Father Khan is not.