Members of the Crestview Police Department SWAT team move past the bodies of simulated victims to clear the Naval School Explosive Ordnance Disposal building during an active shooter exercise on Eglin Air Force Base, Fla., Dec. 3. Police and first responders from Eglin and the surrounding communities participated in the joint exercise in which a person with two weapons entered the building and began shooting students. The SWAT team made sure the building was safe to enter. Then firefighters moved the victims out to the triage area where local emergency medical technicians provided care. (U.S. Air Force photo/Samuel King Jr.)

Members of the Crestview Police Department SWAT guard a door as their team members clear a room at the Naval School Explosive Ordnance Disposal building during an active shooter exercise on Eglin Air Force Base, Fla., Dec. 3. Police and first responders from Eglin and the surrounding communities participated in the joint exercise in which a person with two weapons entered the building and began shooting students. The SWAT team made sure the building was safe to enter. Then firefighters moved the victims out to the triage area where local emergency medical technicians provided care. (U.S. Air Force photo/Samuel King Jr.)

Members of the Crestview Police Department SWAT team move toward an entrance of the Naval School Explosive Ordnance Disposal building during an active shooter exercise on Eglin Air Force Base, Fla., Dec. 3. Police and first responders from Eglin and the surrounding communities participated in the joint exercise in which a person with two weapons entered the building and began shooting students. The SWAT team made sure the building was safe to enter. Then firefighters moved the victims out to the triage area where local emergency medical technicians provided care. (U.S. Air Force photo/Samuel King Jr.)

Members of the Crestview Police Department SWAT team clear the rooms of the Naval School Explosive Ordnance Disposal building during an active shooter exercise on Eglin Air Force Base, Fla., Dec. 3. Police and first responders from Eglin and the surrounding communities participated in the joint exercise in which a person with two weapons entered the building and began shooting students. The SWAT team made sure the building was safe to enter. Then firefighters moved the victims out to the triage area where local emergency medical technicians provided care. (U.S. Air Force photo/Samuel King Jr.)

Members of the Crestview Police Department SWAT team clear the rooms of the Naval School Explosive Ordnance Disposal building during an active shooter exercise on Eglin Air Force Base, Fla., Dec. 3. Police and first responders from Eglin and the surrounding communities participated in the joint exercise in which a person with two weapons entered the building and began shooting students. The SWAT team made sure the building was safe to enter. Then firefighters moved the victims out to the triage area where local emergency medical technicians provided care. (U.S. Air Force photo/Samuel King Jr.)

A member of the Crestview Police Department SWAT guards a door as their team members clear a room at the Naval School Explosive Ordnance Disposal building during an active shooter exercise on Eglin Air Force Base, Fla., Dec. 3. Police and first responders from Eglin and the surrounding communities participated in the joint exercise in which a person with two weapons entered the building and began shooting students. The SWAT team made sure the building was safe to enter. Then firefighters moved the victims out to the triage area where local emergency medical technicians provided care. (U.S. Air Force photo/Samuel King Jr.)

Members of the Crestview Police Department SWAT advance toward a simulated victim at the Naval School Explosive Ordnance Disposal building during an active shooter exercise on Eglin Air Force Base, Fla., Dec. 3. Police and first responders from Eglin and the surrounding communities participated in the joint exercise in which a person with two weapons entered the building and began shooting students. The SWAT team made sure the building was safe to enter. Then firefighters moved the victims out to the triage area where local emergency medical technicians provided care. (U.S. Air Force photo/Samuel King Jr.)

Members of the Crestview Police Department SWAT stay in a tight formation while moving through the hallways of the Naval School Explosive Ordnance Disposal building during an active shooter exercise on Eglin Air Force Base, Fla., Dec. 3. Police and first responders from Eglin and the surrounding communities participated in the joint exercise in which a person with two weapons entered the building and began shooting students. The SWAT team made sure the building was safe to enter. Then firefighters moved the victims out to the triage area where local emergency medical technicians provided care. (U.S. Air Force photo/Samuel King Jr.)

A member of the Crestview Police Department SWAT waits for the rest of his team members to clear a room at the Naval School Explosive Ordnance Disposal building during an active shooter exercise on Eglin Air Force Base, Fla., Dec. 3. Police and first responders from Eglin and the surrounding communities participated in the joint exercise in which a person with two weapons entered the building and began shooting students. The SWAT team made sure the building was safe to enter. Then firefighters moved the victims out to the triage area where local emergency medical technicians provided care. (U.S. Air Force photo/Samuel King Jr.)

Patrol Officer Lucas Kraus and Cpl. Pierre Batiste (left and middle), members of the Crestview Police Department SWAT team, check the map of the Naval School Explosive Ordnance Disposal building during an active shooter exercise on Eglin Air Force Base, Fla., Dec. 3. Police and first responders from Eglin and the surrounding communities participated in the joint exercise in which a person with two weapons entered the building and began shooting students. The SWAT team made sure the building was safe to enter. Then firefighters moved the victims out to the triage area where local emergency medical technicians provided care. (U.S. Air Force photo/Samuel King Jr.)

Patrol Officer Lucas Kraus calls into his command center with a status update after his Crestview Police Department SWAT team cleared the Naval School Explosive Ordnance Disposal building during an active shooter exercise on Eglin Air Force Base, Fla., Dec. 3. Police and first responders from Eglin and the surrounding communities participated in the joint exercise in which a person with two weapons entered the building and began shooting students. The SWAT team made sure the building was safe to enter. Then firefighters moved the victims out to the triage area where local emergency medical technicians provided care. (U.S. Air Force photo/Samuel King Jr.)

Members of the Crestview Police Department SWAT guard a door as their team members clear a room at the Naval School Explosive Ordnance Disposal building during an active shooter exercise on Eglin Air Force Base, Fla., Dec. 3. Police and first responders from Eglin and the surrounding communities participated in the joint exercise in which a person with two weapons entered the building and began shooting students. The SWAT team made sure the building was safe to enter. Then firefighters moved the victims out to the triage area where local emergency medical technicians provided care. (U.S. Air Force photo/Samuel King Jr.)

Members of the Crestview Police Department SWAT advance toward an outer door of the Naval School Explosive Ordnance Disposal building during an active shooter exercise on Eglin Air Force Base, Fla., Dec. 3. Police and first responders from Eglin and the surrounding communities participated in the joint exercise in which a person with two weapons entered the building and began shooting students. The SWAT team made sure the building was safe to enter. Then firefighters moved the victims out to the triage area where local emergency medical technicians provided care. (U.S. Air Force photo/Samuel King Jr.)