That's what the charges filed today against Jared Lee Loughner suggest.

thumb-1294615783-loughner.png

As for the weapon, it was allegedly a Glock pistol purchased at a place called Sportsman's Warehouse:

thumb-1294615828-loughner2.png

And: Politico tracks down a man whose teachings about grammar and mind control sound a lot like Loughner's videos.