Getting away from the shooter or shooters should be your top priority. If you can safely get out of the building without confronting the shooter, do so and encourage others to go with you. Help others escape, if possible, but evacuate regardless of whether others agree to follow. Warn and prevent individuals from entering an unsafe area. Call 911 when you are safe. Describe the shooter, location and weapons.
If the shooter is close-by, secure the room you are in by locking in and barricading the door with furniture. Turn off the lights and computer screens, silence your phone, pull down the shades and hide. Stay out of the shooter's view and remain very quiet. This has proven to be an effective technique.
If the shooter makes entry into the room that you are in, formulate a plan and attack the intruder with whatever means are at your disposal.
Please take the time to watch this 12 minute film by the Advanced Law Enforcement Rapid Response Training (ALERRT) Program at Texas State University. If you desire additional training, please call the Department of Public Safety and Police and ask to speak with Chief Sean Kapfhammer.