It isn’t a pro tip if you’re not a pro. This doesn’t excuse the raw, logistical fact that looser guns laws doesn’t prevent this. The absence of regulation doesn’t regulate. What, you expect another kid to whip out his Glock and stop the shooter?
No, but its silly to suggest a 'Gun free zone' is enough to stop a shooter. We protect the president with guns, we protect courts with guns, we protect banks with guns, we defend celebrities with guns, we defend jewelry stores with guns, we protect governors with guns, we protect sporting events with guns,
but, we defend schools with signs that say, "This is a gun-free zone". And then, we call someone with a gun if there is an emergency.
IThis doesn’t excuse the raw, logistical fact that looser guns laws doesn’t prevent this.
Tighter gun laws also doesn't help your case, either. The top 5 cities with the highest gun crime (not counting Self Deletes) all have super strict gun laws. However, Texas also has a high crime rate. So, its safe to say that there is no correlation that looser or tighter gun laws help or hurt gun crime stats.