Ridiculous. The VAST majority of murderers, mass or not, use semi-auto weapons. Since when are handguns not semi-auto weapons? Shotguns, are you kidding??  No, building a bomb or flying a plane into a building are nowhere near as fast and efficient as a gun, which are ridiculously easy to get. Rural Texas, Las Vegas, Orlando, San Bernardino, Aurora, Columbine, Virginia Tech, SANDY HOOK, mothers shooting their children, toddlers shooting each other, men regularly shooting and killing their wives/girlfriends, ..... nah, we don’t have a gun problem (sarcasm) .... we clearly have a stupidity problem