[Courtesy Capt. Eric Tennessen] For a few hours early in the morning on Monday, August 13th, gunshots and the screams of teenagers echoed through the hallways of Fillmore High School. Thankfully, school is not yet in session and this was part of an organized Active Shooter training for Fillmore deputies, School Resource Officers from throughout our agency, the Fillmore Fire Department and faculty and staff from Fillmore High School. Fillmore’s Police Explorers provided a realistic feel to the training, feigning injuries while running and screaming through the hallways and around the campus. During the training, responding deputies were required to search classrooms, locate and neutralize an active shooter roaming on the campus. At the same time, deputies teamed with members of the Fillmore Fire Department to utilize the rescue task force concept by providing treatment to victims in the area of the shooting. Finally, the Active Shooter training staff conducted separate classroom and scenario training for more than one hundred faculty and staff members from the Fillmore Unified School District. This scenario-based training placed extra effort into heightening the realism of the training experience for all of the participants. Utilizing blank ammunition and actors to the training gave participants a chance to perform under stress and build confidence in their decision-making process. Fillmore School District Superintendent Adrian Palazuelos was especially grateful for the value of the training in providing a new level of awareness to his staff.