But for anything serious like terrorist attacks, it won't make much of a difference. Guns come in through criminal networks anyway (as in Europe). Norway has gun control laws, yet Breivik was still able to kill nearly 80 people regardless. Vehicles have proven to be decent weapons to kill many people with. 9/11 used airplanes and improvised knives to kill thousands.

Gun control will not fix the underlying issues behind mass shootings and while discussing it has to be done, it won't make the problems causing things like this to happen stop.