If you manage to get to the end of the article you see that this genius’s solution would have done absolutely nothing to stop the Newtown attack. The only factor the shooter met was “access” to firearms. Yeah, he and a few tens of millions of others.
It’s pretty typical of most lib “solutions” - which essentially are non-solutions - of funding do-nothing programs with someone else’s money, and growing the size of gov’t and any bureaucracy they can.
The solution is to kill the shooter before he can do any damage: zero recidivism. People who are that far gone into madness and the desire for slaughter, probably should just be dispatched from this world. JMO.