The Los Angeles County Sheriff’s Department confirms that a security guard at Whittier, California’s El Camino High School thwarted a mass shooting on Friday.

CBS News reports the resource officer overheard a student talking about attacking the school just two days after 17 were shot and killed in Florida’s Marjory Stoneman Douglas High School.

Authorities were contacted about the “disgruntled student” and sheriff’s deputies were dispatched to his residence. LA County Sheriff’s spokeswoman Nicole Nishida told AP that the deputies searched the home and found “multiple guns and ammunition.”

KCBS/KCAL’s Kara Finnstrom tweeted:

School resource officer reportedly helps thwart possible school shooting at #ElCamino Continuation HS, @lasd will hold news conference this morning @CBSLA #SouthWhittier pic.twitter.com/hy3gD74Vbd — Kara Finnstrom (@KaraFinnstrom) February 21, 2018

Breitbart News reported that on October 14, 2017, Gov. Jerry Brown (D) signed a bill guaranteeing that California K-12 teachers cannot shoot back if attacked at school.

AWR Hawkins is an award-winning Second Amendment columnist for Breitbart News, the host of the Breitbart podcast Bullets with AWR Hawkins, and the writer/curator of Down Range with AWR Hawkins, a weekly newsletter focused on all things Second Amendment, also for Breitbart News. He is the political analyst for Armed American Radio. Follow him on Twitter: @AWRHawkins. Reach him directly at awrhawkins@breitbart.com. Sign up to get Down Range at breitbart.com/downrange.