Gun control advocates tell us that removing guns from society makes us safer. If that were the case why do the worst shootings happen in gun free zones, like schools? And while accidents do happen, aggressive, terroristic shootings like this are unheard of at gun and knife shows, or military bases. It bears repeating that an armed society truly is a polite society.
The fact is that firearm technology exists. It cannot be uninvented. As long as there is metalworking and welding capability, it matters not what gun laws are imposed upon law-abiding people. Those that wish to have guns, and disregard the law, will have guns. Gun control makes violence safer and more effective for the aggressive, whether the aggressor is a terrorist or a government.