The anti-gun Left (i.e., liberals, Progressives, Socialists, etc.) is ideology-driven, hence factual, reasoned arguments make little impression. Their intent is to capitalize on any mass-shooting to whip up fear and loathing of guns among the uncommitted and uninformed in order to undermine the 2nd Amendment, and ultimately disarm the people. They vehemently resist protecting school children with armed security because that would tend to eliminate the very vulnerable "gun-free zones" that invite attacks. Never let a crisis go to waste, they say. Gotta have 'em to turn people against that nasty, outdated 2nd Amendment. (I'm also suspicious of people who trot out pathetic little moppets to further their agenda, when they support abortion!