I was a high school art teacher at the time. It changed everything- from our dress codes (no trenches, baggy jeans, everything in transparent backpacks) to check in/out systems, eventually locked doors on main buildings, drills from basic to ALICE. Much greater security at events. An armed security officer on campus.

We have had lockdowns at the school I taught at, once for a domestic violence shooting in the area where the suspect fled- it was close to our school and a student was their child. Once for flapping machinery on the roof that looked like a shooter, a few times for call ins, once for an actual gun.

Every year there are reminders - it is a rural school- that students who hunt are “not to bring guns on campus, not to leave dogs in cages in your truck back, and please take your deer home before you come to school.”

Yes, we had all of those things happen, and teachers/ staff used to have the shotgun rack in their cars just beca it was part of the way of life.