It is a Saturday in Lake Mary, Florida and Zach Hudson and his partner Mike Friedman, Defensive Tactics Solutions, are conducting a free "Active Shooter Self Defense Workshop" for teachers and school staff.
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Instructors say guides on how to hide, run or fight should be mandatory for teachers
The sound of metal hitting the floor echoed through the hallways of the childless elementary school. It was an empty clip from a gun, fallen to the ground.