The hazardous material team enters the school to locate, analyze, identify and extradite the foreign substance left by the perpetrator in an active shooter exercise Nov. 14 at the Sierra Vista Elementary School in Vacavile, Calif. Travis and Solano County
The hazardous material team enters the school to locate, analyze, identify and extradite the foreign substance left by the perpetrator in an active shooter exercise Nov. 14 at the Sierra Vista Elementary School in Vacavile, Calif. Travis and Solano County responders collaborated to respond to the massive exercise. (U.S. Air Force photo/Senior Airman Madelyn Brown)