Following last Friday's mass casualty shooting in Aurora, Colorado, the City of Houston has released an instructional video on what to do in case of a similar emergency.
Funded by the Department of Homeland Security, the city hopes that the video can help people prepare people for the worst.
Entitled Run.Hide.Fight. Surviving an Active Shooter Event, it depicts a fictional shooting incident in a crowded office building.
'Our thoughts and prayers are with the victims of Aurora's tragic shooting, along with their friends, family and community,' said Houston Mayor Annise Parker.
'I can't imagine the horror and grief. If it is at all possible for any good to come out of it, perhaps it can be letting people know the options to consider if it happens again.'
In the six-minute video, a narrator warns that all shooter events are unpredictable, but there are three things that one can do to increase one's chance of survival: run, hide or fight.
'It may feel like just another day at the office,' the narrator says in the beginning of the footage.
'But occasionally,' the narrator says. 'Life feels more like an action movie than reality.'
In the video, a man wearing sunglasses and dressed in all black walks past trees, the viewer unable to get a clear image of him.
The camera pans through a typical office setup, with people of varying ages and races doing paperwork, talking on the phone.
The man dressed in black, presumably the gunman, then walks straight towards the camera.
The office workers continue to go about their daily business, sipping on coffee and greeting one another.
'But sometimes, bad people do bad things,' the narrator says.
The gunman enters the office building, a security guard busy chatting with a woman, and removes his backpack.
Pulling out his weapon, he shoots the security guard first and then his female companion.
'If you are ever to find yourself in an active shooter event, your survival may depend on whether or not you have a plan,' the narrator says.
'There are three things you can do: run, hide, fight.'
The video shows how each of the different scenarios pan out, offering instructional tips on maintaining composure and getting to safety.
'We hope our residents are never confronted with such an event, but we want to prepare them with some important information if they ever find themselves in this situation,' said Dennis J. Storemski, Director of the Mayor's Office of Public Safety and Homeland Security.