Three victims of the Colorado movie theater shooting filed lawsuits Friday against the theater's owner, claiming that its inadequate security procedures failed to prevent the attack that killed 12 people and injured another 58.

Joshua Nowlan, Brandon Axelrod and Axelrod's wife, Denise Traynom, filed two separate lawsuits against Cinemark Theaters, the parent company of the Century 16 multiplex in Aurora, Colo. All three plaintiffs were reportedly wounded in the shooting, which occurred at the midnight premiere of "The Dark Knight Rises."

Just before the shootings, suspect James Holmes allegedly left the theater through an exit door that he propped open, retrieved ammunition, weapons and protective gear from his car, and then reentered the theater to open fire. The lawsuit argues that "readily available security procedures, security equipment and security personnel would likely have prevented or deterred the gunman from accomplishing his planned assault on the theater's patrons," according to a statement from the plaintiffs' lawyers.