You grew up in Stockton, CA? If so, you have my sincere condolences.

The mass shooting you cited was the catalyst for the passage in CA of the Roberti-Roos Assault Weapons Control Act of 1989 which, as amended, is still in effect. CA gun control laws/regs are substantially worse than most of you outside of CA can possibly imagine. Plus ammo purchases and hunting bullet composition are now subject to stupid restrictions. The CA legislative/regulatory/tax environment is so oppressive that it is no wonder that Oracle, Tesla, Hewlett Packard Enterprise, etc., are moving their respective headquarters outside of CA.