The trouble is, even if all guns were banned tomorrow, people would be extremely reluctant to hand theirs in. The USA appears to be awash with the things, and it would be almost impossible to search everybody's house, car, garage, sheds etc.
Drugs are officially banned, but both UK and USA have enormous drug problems, because the wretched stuff gets through and people continue
to deal/buy it. Same with guns.
The only solution to some pro-gun folk is for simply everyone to be armed and thus defend themselves. Gunfight at the OK corral...
I feel so very sad for the victims' families of this latest tragedy.