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Pictures | Mon Apr 4, 2016 | 2:35pm EDT

Ready to respond

Joe Deedon, president of TAC ONE Consulting, coaches a student during a scenario with a mock victim on the floor in a middle school during an Active Shooter Response course offered by TAC ONE in Denver April 2, 2016. According to TAC ONE, the course, which is offered for the first time to concealed weapons permit carrying civilians, is designed at preparing people to effectively save lives prior to the arrival of law enforcement at an active-shooter incident. REUTERS/Rick Wilking

Joe Deedon, president of TAC ONE Consulting, coaches a student during a scenario with a mock victim on the floor in a middle school during an Active Shooter Response course offered by TAC ONE in Denver April 2, 2016. According to TAC ONE, the course,...more

Joe Deedon, president of TAC ONE Consulting, coaches a student during a scenario with a mock victim on the floor in a middle school during an Active Shooter Response course offered by TAC ONE in Denver April 2, 2016. According to TAC ONE, the course, which is offered for the first time to concealed weapons permit carrying civilians, is designed at preparing people to effectively save lives prior to the arrival of law enforcement at an active-shooter incident. REUTERS/Rick Wilking
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Glock semi-automatic pistols modified to shoot Simunition non-lethal training ammunition are ready for an Active Shooter Response course offered by TAC ONE Consulting in Denver April 2, 2016. REUTERS/Rick Wilking

Glock semi-automatic pistols modified to shoot Simunition non-lethal training ammunition are ready for an Active Shooter Response course offered by TAC ONE Consulting in Denver April 2, 2016. REUTERS/Rick Wilking

Glock semi-automatic pistols modified to shoot Simunition non-lethal training ammunition are ready for an Active Shooter Response course offered by TAC ONE Consulting in Denver April 2, 2016. REUTERS/Rick Wilking
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Tony Schluck, an instructor for TAC ONE Consulting, demonstrates a defensive technique in a middle school classroom during an Active Shooter Response course in Denver April 2, 2016.  REUTERS/Rick Wilking

Tony Schluck, an instructor for TAC ONE Consulting, demonstrates a defensive technique in a middle school classroom during an Active Shooter Response course in Denver April 2, 2016. REUTERS/Rick Wilking

Tony Schluck, an instructor for TAC ONE Consulting, demonstrates a defensive technique in a middle school classroom during an Active Shooter Response course in Denver April 2, 2016. REUTERS/Rick Wilking
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A student prepares to search a classroom in a middle school for a shooter during an Active Shooter Response course offered by TAC ONE Consulting in Denver April 2, 2016. REUTERS/Rick Wilking

A student prepares to search a classroom in a middle school for a shooter during an Active Shooter Response course offered by TAC ONE Consulting in Denver April 2, 2016. REUTERS/Rick Wilking

A student prepares to search a classroom in a middle school for a shooter during an Active Shooter Response course offered by TAC ONE Consulting in Denver April 2, 2016. REUTERS/Rick Wilking
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Joe Deedon, president of TAC ONE Consulting, demonstrates searching for a shooter in a middle school during an Active Shooter Response course offered by TAC ONE in Denver April 2, 2016.  REUTERS/Rick Wilking

Joe Deedon, president of TAC ONE Consulting, demonstrates searching for a shooter in a middle school during an Active Shooter Response course offered by TAC ONE in Denver April 2, 2016. REUTERS/Rick Wilking

Joe Deedon, president of TAC ONE Consulting, demonstrates searching for a shooter in a middle school during an Active Shooter Response course offered by TAC ONE in Denver April 2, 2016. REUTERS/Rick Wilking
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A student (L) responds to commands from a simulated law enforcement training, with a mock victim on the floor in a middle school, during an Active Shooter Response course offered by TAC ONE Consulting in Denver April 2, 2016. REUTERS/Rick Wilking

A student (L) responds to commands from a simulated law enforcement training, with a mock victim on the floor in a middle school, during an Active Shooter Response course offered by TAC ONE Consulting in Denver April 2, 2016. REUTERS/Rick Wilking

A student (L) responds to commands from a simulated law enforcement training, with a mock victim on the floor in a middle school, during an Active Shooter Response course offered by TAC ONE Consulting in Denver April 2, 2016. REUTERS/Rick Wilking
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Glock semi-automatic pistols modified to shoot Simunition non-lethal training ammunition sit under an inspirational poster at a middle school during an Active Shooter Response course offered by TAC ONE Consulting in Denver April 2, 2016.  REUTERS/Rick Wilking

Glock semi-automatic pistols modified to shoot Simunition non-lethal training ammunition sit under an inspirational poster at a middle school during an Active Shooter Response course offered by TAC ONE Consulting in Denver April 2, 2016. ...more

Glock semi-automatic pistols modified to shoot Simunition non-lethal training ammunition sit under an inspirational poster at a middle school during an Active Shooter Response course offered by TAC ONE Consulting in Denver April 2, 2016. REUTERS/Rick Wilking
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A student prepares to engage a shooter with a hostage in a middle school during an Active Shooter Response course offered by TAC ONE Consulting in Denver April 2, 2016. REUTERS/Rick Wilking

A student prepares to engage a shooter with a hostage in a middle school during an Active Shooter Response course offered by TAC ONE Consulting in Denver April 2, 2016. REUTERS/Rick Wilking

A student prepares to engage a shooter with a hostage in a middle school during an Active Shooter Response course offered by TAC ONE Consulting in Denver April 2, 2016. REUTERS/Rick Wilking
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A student confronts a shooter with a mock victim on the floor in a middle school during an Active Shooter Response course offered by TAC ONE Consulting in Denver, Colorado April 2, 2016. REUTERS/Rick Wilking

A student confronts a shooter with a mock victim on the floor in a middle school during an Active Shooter Response course offered by TAC ONE Consulting in Denver, Colorado April 2, 2016. REUTERS/Rick Wilking

A student confronts a shooter with a mock victim on the floor in a middle school during an Active Shooter Response course offered by TAC ONE Consulting in Denver, Colorado April 2, 2016. REUTERS/Rick Wilking
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Joe Deedon (L,) president of TAC ONE Consulting, debriefs a student after a scenario with a mock victim (foreground) in a middle school during an Active Shooter Response course offered by TAC ONE in Denver April 2, 2016. REUTERS/Rick Wilking

Joe Deedon (L,) president of TAC ONE Consulting, debriefs a student after a scenario with a mock victim (foreground) in a middle school during an Active Shooter Response course offered by TAC ONE in Denver April 2, 2016. REUTERS/Rick Wilking

Joe Deedon (L,) president of TAC ONE Consulting, debriefs a student after a scenario with a mock victim (foreground) in a middle school during an Active Shooter Response course offered by TAC ONE in Denver April 2, 2016. REUTERS/Rick Wilking
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