Most of the Violent Felons and Chriminals of non-sociopathic methodologies are Learning Disabled and this does not and should not preclude them from owning guns or knives or anything; I write this to point out the failure of therapy and mistakes of the Virginia Situation.
I am learning disabled as a kid "special class" I ran temper that made a desk fly across the room; this made a gun ban pointless at the time. More: here.