Video here. California already had, if I recall correctly, handgun registration (in effect), State as well as Federal background checks, a 15-day waiting period, one gun a month rationing, no carry (open or concealed) without a "may issue" permit, and an "assault weapon ban." Not to mention expensive "safety tests" that have nothing to do with safety (witness the fact that police and prosecutors' guns are exempt from them).
But the low-info people interviewed want "stricter" controls without apparently having any idea what those might be. Presumably, the fact that crime continues proves that the gun laws aren't strict enough.
The legislature responds by making the "safety" requirements applicable to single-shot handguns, claiming that people are buying single shots and making them into repeaters.