Or a nice Crimson Trace on his handgun.
Well it might have helped with the first round.
But probably not. I am guessing that once the criminal turned his attention to Mr. Al-Mujaahid his adrenal gland dumped its load in to his blood stream and all of his muscles started to twitch, his range of vision shrunk down to the size of a dime so all he saw was the face of the criminal and his shotgun.
My guess is that the first shot hit the perp’s leg the second grazed his forehead and the rest landed in the upper shelves of groceries behind the perp or in the ceiling. I doubt that Mr. Al-Mujaahid had much thought of controlling the muzzle climb caused by the recoil of firing his weapon.
Unless you are competitive practical shooter you are not likely to practice the rapid fire shooting techniques that would help you keep your pistol on target in this type of situation.
Laser sights may have helped with the first shot but I doubt its usefulness with the other six.
I’ll side with 2111USMC in his post 32 when he says “Range time and a gun fight are two different things.”