Sounds like 2 officers responded fairly quickly, but I’m surprised the shooter seems to have been able to enter the school property in the fist place. Possibly happened at the same time as kids were being released??
My elementary school was wide open. No fences, no outside walls, all classroom doors opened to the outside. I can't imagine securing that school now short of bulldozing it and rebuilding.
Prayers for the officer who had to kill an 18 year old kid.
That will be hard to live with.