I'll say it again for those who are slow to comprehend .
There are several fairly simple, effective ways to eliminate school shootings, however the gun grabbers refuse to even contemplate them, Why?  Because stopping school shootings is the opposite of their goal - their goal is to ban all forms of firearms.  Dead children are their only effective means to do this.
The question they always ask is "How many dead children will it take for you to give up your guns?  And THAT is exactly what they mean, they won't entertain ANY other means of reducing the deaths of children , except ZERO firearms in private hands. That's their end goal any they are just fine with dead children to achieve it.

They aren't against guns per say, just they want them ONLY, in the hands of people they control.