My predictions.
1) Everyone in this man's life knew he was mentally unstable.
2) He was still able to get guns too easily.
...and people kill people not firearms
The only way to kill a firearm is to ban it.
Again banning of firearms is never going to happen.
Majority of Democrats and Republicans support legal ownership of firearms.
The requirement for ownership veries from state to state and some require more than others but citizens are allow to own a firearm because of the Second Amendment!
Also the requirement to repeal the Second Amendment is tougher than you think.
Not only do you need a Super Majority in the Senate you also need a Super Majority with the States and that is not happening!
So what part of banning firearms is not happening is too hard for You?
In the end you keep on writing like you know how this could happen without understanding the laws and requirements of this Nation!