I have worked in the field of mental health and I agree that too often laws prevent the dangerously mentally ill from being restricted; however, those same laws have no relationship to the NRA or gun control. Determined people don't  need a gun to snuff out lives. Plenty of lives are taken by arson, bombs, knives, or just driving a vehicle into a crowd of people. I once had a mentally ill student who had killed a man with a pitchfork. The laws that need to be changed are those which allow  returning the dangerously mentally ill back into society, with limited or no monitoring and it happens all of the time.