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DATE/TIME: Wednesday, November 20, 2019

INCIDENT: School Threat

LOCATION: Alta Loma High School

SUSPECT: 15-year-old male, resident of Rancho Cucamonga

On Wednesday, November 20, 2019, the School Resource Officer (SRO) for Alta Loma High School received a tip of a possible threat posted on a social media account. The SRO learned several concerning messages were posted on Twitter between Monday, November 18th, and Tuesday, November 19th. These messages clearly referred to committing a school shooting.

The SRO identified the Twitter account holder as a 15-year-old male student at Alta Loma High School. The suspect was contacted and interviewed.

Deputies served a search warrant at the student’s residence in Rancho Cucamonga and there were no firearms in the home. Additional electronic evidence was collected. Following the search warrant, the suspect was arrested and booked at Central Juvenile Hall for PC 422- Criminal Threats.

There are no additional known threats to the school at this time.

Refer: Deputy Maviael Gordon

Station: Rancho Cucamonga Station

Phone No. (909)477-2800

Case No. 111915037

JOHN McMAHON, Sheriff-Coroner
San Bernardino County Sheriff-Coroner Department