The worst mass shooting in U.S history happened in Las Vegas on Sunday. Videos of victims ducking, running and laying down in fear of their lives have been seen circling the internet. How should people react? Run? Hide?

This is a situation that happens more often than it should, according to over 1,100 mass shooting have occurred in the United States in the last four years.

The people in Las Vegas came together to help one another during and after the horrific event, from carrying wounded victims to performing CPR, and laying on top of other each other in order to protect them from the flying bullets.

Ray Barron with the Freedom Defense Training teaches citizens what to do in situations like an active shooter. FDT holds various first responder tactical medicine, adult survival training courses, concealed carry courses and more in the East Texas area.

Understanding what to do in situations like an active shooter or even a home intruder is important.

FDT holds various events in the East Texas area, for more information on the events or to schedule a group course, visit their website.