You certainly don't ad you haven't yet said what you would do to prevent these killings in the future. You live them because you can use them to advance an agenda you can't even articulate
I would limit the production, sale and importation of weapons capable of murdering groups of children. I would limit possession of such weapons and certain types of ammo. I would bring back mental health hospitals and spend more money on mental health counseling in schools. I would provide support for struggling families. I would expand red flag laws.