How else is this going to be resolved? Bad guys don't follow the law. They will get guns.
I agree that teachers (or someone that's a good guy) should be toting.
However, you're talking about fixing the problem (of kids getting killed.)
I'm talking about fixing the problem (of political factions pushing for political action.)
Unfortunately, politicians focus on the latter question, which is rarely if ever related to the former issue that you are concerned about (e.g. actually preventing kids from being killed.)
Absolutely. BGs in the old USSR had guns, BGs in "gun free" Japan have guns, BGs in the UK have guns even though handguns are totally banned, and BGs in the US will always have guns even after all law abiding Americans have been denied their constitutional right to have guns.
What's so hard to understand about criminals and guns? Criminals are by definition people who do NOT obey laws, and certainly not laws that would take away the tools of their trade.