FLORIDA GOV. RON DeSantis, a Republican, signed into law Wednesday a measure that will allow teachers to carry a firearm in school.

The contentious move comes one day after a shooting at STEM School Highlands Ranch in Douglas County, Colorado, where one student died and eight others were injured. According to Education Week’s school shooting tracker, it was the 12th school shooting this year that resulted in a death or injury.

As it stands, Florida law already requires schools to have at least one armed person on site, which is often a school law enforcement officer. The measure signed by DeSantis expands the eligibility of a so-called guardian program put in place a month after the mass shooting at Marjory Stoneman Douglas High School in Parkland, where 17 students and staff were killed.

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