At this point the indication is the laws on the books that should have stopped it apparently didn’t actually stop it. So more Bans and Laws probably aren’t going to help.

As the Shooter apparently obtained a Conceal Carry permit from Las Vegas Police. And also made it through several background checks. Several of which would be more invasive than others. While actively being treated for Mental Illness. If the preliminary reports and prescription pills they allegedly found in his vehicle are any indication.