"Tragic. A problem Which many Americans, and, in particular, the NRA will not allow us to solve."

Do you actually believe that you understand this problem so well that you can "solve" it?   It is simplistic to blame the problems that we have with random mass murders on the availability of guns, if for no other reason than that guns were relatively unregulated for most of our history, and only when shooting started to become a problem were they regulated. Furthermore, though there are extensive regulations on the possession and availability of guns, the problem seems to be getting worse, not better.