Why isn’t more done to stop mass shootings?

@Loretta78 Not necessarily true. With today's internet technology you can make a weapon that can do considerable damage with a 3-D printer. I've seen it in action and the dismal results. It may have not had a thirty round clip but the guy got three people before a gal with a concealed carry took him down before he could get the next. So let me put another way. Guns are the weapon of choice for murdering thugs. Look at the two young gals in the school that were going to use knives. Until we start paying attention to the warning signs of these troubled people,killing sprees will keep happening. Not a pleasant thought but that's reality.