A plot by a “disgruntled” student who was planning a mass shooting at a Southern California high school was thwarted after a security guard overheard a conversation, authorities said Tuesday.
The Los Angeles County Sheriff’s Department said in a news release a security guard at El Camino High School in Whittier, located east of Los Angeles, overheard the 17-year-old student threaten to open fire on the school Friday.
Sheriff’s spokeswoman Nicole Nishida told the Associated Press deputies discovered “multiple guns and ammunition” after searching the student’s home.
Officials planned to reveal more details about the alleged plot at a news conference on Wednesday.
Robert Jacobsen, general counsel for Norwalk-La Mirada Unified School District, told the Whittier Daily News the student and a teacher had a disagreement because he brought headphones to school. Students are not allowed to have electronic devices out during class time, Jacobsen told the newspaper.
“It was a threat to come back and bring a gun,” Jacobsen said.
The alleged planned shooting was set to happen two days after 17 people were gunned down at a Florida high school by a former student.
The Associated Press contributed to this report.