Police expected to assess security arrangements in wake of Wednesday shooting . Gunman at Omaha , Nebraska , mall killed 8 people and himself . He said malls would be considering whether to close some entrances , bring in additional officers , and make security more visible . Some security experts say such incidents are impossible to anticipate . Research by Police Foundation suggests that drills for mall guards are inadequate .
Police expected to assess security arrangements in wake of Wednesday shooting . Gunman at Omaha , Nebraska , mall killed 8 people and himself . Some security experts say such incidents are impossible to anticipate . Research by Police Foundation suggests that drills for mall guards are inadequate .