Student arrested for making death threats at Forestville school

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A 17-year-old student was arrested Wednesday for making threats to kill students and staff at a local high school in Forestville, officials said.

The student, whose name was not released, was taken into custody after staff at El Molino High School found a threatening letter left behind in the school office, said officials from the Sonoma County Sheriff’s Office.

The letter didn’t target anyone specifically, but claimed “that he was going to shoot up the school,” police said.

Detectives from the Sheriff’s Violent Crimes Unit worked with school staff to identify the author of the letter.

Though police said the student’s threats didn’t appear “legitimate,” he was booked in the Sonoma County Juvenile Hall on a felony charge of making threats.

Sarah Ravani is a San Francisco Chronicle staff writer. Email: sravani@sfchronicle.com Twitter: @SarRavani