Even fastening metal crossbars to existing doors prevents entry, using the savings to add warm blooded security personnel. I believe the shooter picked that school as it was the easiest to access. The true wealth of our nation lies in our children, and I will protect mine jealously. Politicians believe they are entitled to armed, even private security. They are not our future, and frankly, most are a waste of oxygen. Making the schools hard targets will stop most of this. I would also encourage some policing in many city schools, as in police sharing some space. Might help with disorderly students as well. I'm trying very hard to keep my remarks civil.....but this feels like a threat to my girls.....The "trans" groups are calling the shooter a martyr now. There's your problem, when people think they have the power of God. Time to Come to Jesus I believe.That's pretty easy to address as the schools I worked had done. It is an issue but you'd be surprised how that can be addressed.