During the initial stages of the investigation, it was determined that the threat was specific to the high school campus. The lockdown was subsequently lifted from the elementary school, however, due to the close proximity of the middle school to the high school, the middle school lockdown was left in place.
The investigation continued as new information was received by the department with mutual aid resources arriving at the school to provide assistance. The responding agencies included: California Highway Patrol, Mammoth Fire Protection District, Mono County District Attorney Investigators, Mono County Sheriff, and Mono County Probation.
Information gathered by the department led to the identification of a student. Officers were able to safely take the student into custody during the lockdown with no incident, and subsequently lifted the lockdown of the middle school. For safety precautions, responding officers conducted a thorough search of the entire Mammoth High School campus. The search included classrooms, closets, cupboards, backpacks and lockers. This enormous task was accomplished expeditiously and efficiently with the greatly appreciated assistance of each of the responding agencies.
While the extensive search took place, students were escorted to the Multi-Purpose Room (MPR). Prior to entering the MPR, each student was given a brief cursory pat down search for weapons only. The students were respectful of the officers and took the incident seriously. This made our efforts easier. School administrators and staff provided any needed counselling to students, along with much needed sustenance and restroom breaks.
At the conclusion of the search, no weapon was found and no charges have been filed at this point. Information about the incident will be forwarded to Mono County Juvenile Probation for any filing recommendations to the District Attorney.
The department believes that this incident was not related to the Bishop High School Lockdown that started about 10 minutes prior to this incident.
We are thankful there was no violence that occurred. Once again, this incident demonstrated what a great working relationship we have with our fellow law enforcement agencies, fire department and the school district.
Again, thank you to the Mammoth High School students for their cooperation, understanding, and for taking this incident seriously.