This is all going to be heavily scrutinized. But remember that if you're a Secret Service agent and you have permission to kill, you have to make sure that that target is an absolute threat. And he might have only seen the head of a person on the edge of a rooftop at a distance. And he might not have seen the rifle or the muzzle flash until that person fired. And it seems to me like the Secret Service reaction there was pretty rapid, but this will all be.