It's not the sign, but the penalty for ignoring it. Prior to gun free zones, the CDC found that an eye-popping 135,000 guns were brought to school each day. Other research found that about one in five urban high school students reported having a gun fired at them at school. After establishing gun free zones, the number of guns being brought to school dropped sharply. The primary reason was that the kid, would not only faced expulsion but both federal and state charges. Depending on the state, that gang banger could face up to 5 years in jail, just for bringing guns on school property. Without these laws, about the only charges, that could be brought against them was trespassing.If you think a sign is keeping a gang banger from bringing a weapon to school you are ignorant beyond belief.Not surprising because according to federal law almost all public schools are gun free zones. The effect of gun free zones on mass school shootings is uncertain. I would say it helps local police when dealing with gangs bringing guns on to school grounds and discourages students from doing the same. I doubt if it will have any effect, positive or negative on mass school shootings.You kn ow whats amazing??? The fact that these shootings happen in Gun free zones show what happens when the majority doesn't have weapons to defend themselves. Also considering most of the guns are gotten illegally by the shooters it is a almost perfect microcosm of what the country would look like if the Left had its way.
Gun free zones were designed to discourage a different type of gun violence. Before the law, kids were bringing guns to schools in alarming numbers. It wasn’t the suicidal or the homicidal kid who just decides to shoot everything up. It was the problem of bullying or gang violence or surrounding drug violence or drug dealing going on around schools. Gangs and drugs mean guns, and the idea was that we have to get guns out of this equation. I'm pretty sure tearing down those gun free zone signs will be welcomed by the gangs.
I doubt that making schools a gun friendly zone will have any effect on mass killings but it will certainly have a negative effect on kids and gangs bringing guns on school property.