Although I own several guns, I also don't consider myself a "gun guy", although I suppose some would. "Gun guys" that I know have 10X, or more, the array of weapons that I have and shoot recreationally and even competitively quite often.
It's impossible for me to say exactly how I would react to the tragic loss of a child, etc. But I don't think it would change my stance on guns.
If for instance one of my children was killed in a car wreck, I am pretty sure that I would not give up driving. To me...the gun is a tool, not the real problem.
Now then, does this mean that I oppose every single idea meant to curtail, or eliminate, gun violence? No...in particular, given that way too many of these wackos are young, "loner" type, males...I think there is room to design laws/regulations to lessen that possible angle...without unnecessarily banning guns for all, etc.
I appreciate the sincere tone of your OP...I wish more people would remain rational and open minded to other viewpoints as they try to grapple with this very vexing issue. I understand the emotion, as there is nothing worse than an innocent child being slaughtered for no reason...BUT, the overwrought discourse then does NOTHING to actually help find some sort of a solution(s).