Expect an uproar by the media over this within a week. The man will probably turn out to be someone's poor misguided relative who has been having hard times since the hurricane because George Bush wouldn't rebuild his house and his wife and kids are starving and he had no where to turn. And the NG learned how to kill in Bush's war and is a murderer. Or something along those lines. I hope I'm wrong.
Oh yes. I fully expect that to happen. They will want to know why, when happening upon a man with a hacksaw in one hand and throwing stuff with the other, and a gun on his person, the Guardsman didn't bother to stop and have a friendly conversation with the idiot to find out his true intentions. What a backwards world this has become.
I think you just about covered all the bases...