How many people out there don't support any gun regulation? It's cool that you'd like to hear solutions from an opposing point of view, but when you start out mischaracterizing the view of those you don't agree w/, you probably won't get the discussion you are looking for.
Also, solutions to the wackos committing mass murder will necessarily be different than those to gang-related street crime. For the street crime, take a look at what worked in places like NYC in the '90's and emulate similar programs.