Active shooter training. Photo via MGN If you are find yourself in a situation where you are part of an active shooter situation, the way you react can make all the difference in whether you make it out of the situation alive. Collier County Sheriff’s Office wants to make sure you are prepared in an active shooter situation, and they were offering a class for anybody wanting to attend. The Active Shooter Response for Civilians class took place on Tuesday, Nov. 13 at the South Regional Meeting Room at the South Regional Library.