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California would raise the minimum age for purchasing a rifle and other long guns from 18 to 21 under legislation proposed Wednesday in response to the recent mass shooting at a Florida high school.

The measure by state Sen. Anthony Portantino (D-La Cañada Flintridge) would also ban the purchase of more than one firearm by individuals in any 30-day period.

Portantino proposed the bill after a gunman armed with a semiautomatic rifle killed 17 people at a Parkland, Fla., high school on Feb. 14. The suspect is a 19-year-old who authorities say purchased the weapon legally.

“Like most Americans, I was horrified by recent events in Florida,” Portantino said in a statement. “As a father of a high school sophomore I can’t stop thinking about the unnecessary nightmare that this tragedy caused for the affected families. I feel it is imperative that California leads when Washington refuses to act.”

Read the full story on LATimes.com.