Many Mass Shootings

Why have there been so many mass shootings in recent years? I'm 80 and I don't remember many before Columbine. Maybe that's because the liberal media covered them up. But today's politicians will never find out the reason so long as they simply blame the guns. I have heard often that it is the "easy availability of guns" that is at fault. That is the lazy way to look at it. Guns are NOT that "easily available" if you have a criminal history. And those who do not have a criminal history should NOT be denied the constitutional right to own and use a gun for self defense. But as long as they simply blame the gun, they're looking in the wrong direction and they will never find the answers they seek. It is simple IGNORANCE on their part, and I hate it that such people find their way into important, lawmaking positions so often. So that, instead of looking for the REAL reasons, they waste their time making USELESS laws that do NOTHING to "stem gun violence." I think it is a combination of liberals (Dumocrats) making VICTIMS out of so many people, hoping to thereby create votes for themselves, and the feelings of hopeless thus engendered, that CREATE malcontents who think they have a GRUDGE against "society," It is those malcontents that are at fault, not guns. That has been proven by the mass killings recently where there were no guns even involved. Where they used knives, swords, cars and trucks, and even pressure cookers to kill people. We need to find some politicians or bureaucrats who are not IGNORANT, who will look in the right direction, instead of taking the easy road and concentrating on guns. (Just common sense)