You are parroting pure nonsense. If you want to hold responsible those who have allowed this type of tragedy let get with it.
Let's start with the film industry, television industry, video game industry, the recording industry and the MSM, All of these promote and glorify disrespect, crime and violence, with and without a gun.
Let's put blame on an ever increasing government that's fails to punish criminals while removing personal responsibility from the parents of children.
In the case you are responding to there was plenty known about an stable type with intent. there was even a FBI report on him, one that was ignored. The FBI dropped the ball big time. there are over 8-Million AR 15's in the USA, we cannot hold all as bad because one nut job does something stupid with it.
Only those without do respect others would wish do hinder or remove the rights of millions do to a few sicko's and criminals. There are about 300-Million legally owned guns in America, Clearly It Is Not The Gun That Is The Problem.
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Progressiveness Politics Must Die Today,
In Order That We May Be Free Tomorrow!