The Gilroy, California, shooting shows the limit of state gun control laws
California has some of the strictest gun laws in the country. But the state laws can’t overcome federal law.
The author of this piece has recently suggested repealing the #2A and "buying back" all semi-automatic firearms. He doesn't want more federal gun laws, he wants federal gun bans (without informing us of how he thinks they'd be enforced).
The Gilroy festival shooting was not due to a failure in California’s gun laws. It was due to a failure in federal laws.