Kerry did not shoot himself, nor were his injuries any less serious than they were recorded. Bushies always do this when someone runs against them. With McCain, they said he was traitor, even though he refused to be let out early ahead of his men even though he was the son of an admiral.
Kerry served twice in Vietnam, and he was injured three times. Bush's only injury was falling out of a car while he, Rumsfeld and Cheney dodged serving thier country, just as they do now.