It would be pretty easy to put a stop to it, just make gun manufacturers and distributors as well as purchasers, own insurance so that innocent by stander sand their families can recoup the cost proportional to the degree that the mechanism aided the wacko.Guns are not killing live music..
With that said, its not the guns its the person(s) wielding them. Unfortunately, in todays world with all the social media, and propaganda and hatred, its easy to see large venues as targets, because its about the sensationalism in the media etc etc..
certain things do not add up with this attack.. i wont discuss all that here.. but as they say something smells fishy..
I think football stadiums are the way to go because you cant hardly sneak a fart into one of those without being busted. Here in OHIO, I attend an OSU game and they have snipers setup all around ready to plug the cancer from the crowd. Stadiums I feel offer a better avenue to control and prevent these things from happening..
not much you can do with being shot at from a hotel room that looks over the venue.. I guess when venues are planned like that, they need to look into the same security details as say head of state to identify and advise.
Sad situation, but the fleece of control is just that a fleece. When someone is hell bent on something they will see it through positive or negative.
Say a person is a wacko with a knife or ax kills a few people. Now take a wacko that kills numerous people with some manufactured mechanism, subtract whatever one or two from the total. The remainder is manufacturing and distributing liability, to be paid out by their insurance broker(s), for aiding and abetting wackos. Let the market take its course.