Okay, I challenge you to come up with a realistic solution that solves this problem? Think about the loner without family,friends, clergy? The felon gang-banger? Etc. What about them? These are the very ones committing these crimes, not grandpa who is nearly deaf, blind, and acts like Ron Paul or Ross Perot crazy.
Speaking as a former attorney, a judge, most especially a California judge, is about the last person I would choose as the arbiter of my right to own a gun.
Better to open a window, throw a rock, and ask the first person you hit to make the decision.