GFeM007_English: Armed Aggressors and Active Shooters

Active Shooter and Armed aggressor threats can originate from either external or internal threats, whether it is from an unknown individual or group (such as criminals, mentally disturbed individuals, or terrorists), a vendor or supplier, a customer, employee, or a member of staff (or an employee who was fired), or their family or friends. Armed aggressor threats also relate to Workplace Violence incidents, where a weapon is used, or where an external group (most often terrorist) plan a coordinated attack.