mhuxtable you ask a reasonable question, and your conclusion that mentally ill folks should not have weapons is one that is used all the time by those who would restrict the ownership of guns by imposing some sort of means testing. I think we can all agree that criminals (insane or not) are a threat to society. Rather than deal with that reality it is far easier to blame guns.
"Any fool can criticize, condemn and complain and most fools do." Benjamin Franklin