PHOTOS: Huge active shooter training at Ross Middle School involved every Butler County district

Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
Active shooter training at Ross Middle School
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Ross Township Police school resource officers David Liddil, left, and Bryan Rogers participate in an active shooter training with students, school faculty, and first responders from around Butler County Tuesday, June 18 at Ross Middle School in Ross Township. School resource officers and medical personnel worked to clear the school of the threat and prioritize victim conditions in the simulation of a shooter in the school during a board meeting. NICK GRAHAM/STAFF