The shooting inside a Louisiana movie theater comes on the heels of the Charleston church massacre and last week's terror attack in Chattanooga.
Last night's shooting, which left two women and the gunman dead in Lafayette, came just one day after a Colorado jury decided that Dark Knight Rises movie-theater shooter James Holmes is eligible for the death penalty.
In light of such incidents, what can you do if you find yourself in a movie theater when a gunman opens fire?
During the incident in Colorado, theater-goers ran for their lives, but safety expert Peter Marino, a former NYPD Captain, told INSIDE EDITION that running may not always be the best choice.
"You need to remain calm and maintain a low profile so you do not attract the shooter's attention," he said.
Instead, if you sense something is wrong, you should try to get out of view, he said.
"I want you to get down on the floor, get low," he said. "Keep a low profile, lay flat, and concile yourself from the line of sight from the shooter."
He added that safety should be on your mind from the moment you enter a theater.
"Where you sit is not as important as what you do before you sit down. What you need to know is your surroundings. Before the lights turn off, I want you to know where your exits are, where are places you might hide," Marino said.
He added that you should also pay attention to the safety messages played before the movie begins such as: "Please use the exit nearest you in an emergency."
These are words to keep in mind after this latest movie theater tragedy.
John Russel Houser, 59, opened fire during a 7pm screening of Trainwreck in Lafayette on Thursday. He shot two young women dead and injured nine other movie-goers before ultimately taking his own life.
It comes three years after the Colorado incident in which James Holmes killed 12 people when he opened fire in a theater in Aurora.
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