Hi,
"Stills from the surveillance video show at least one of the customers holding what appears to be an
assault-style rifle."
Good grief.
It's hard to call them "do-gooders" if they flee the scene. Yes, many questions. Louisiana is not yet a Constitutional carry state. (I think the Governor vetoed the bill even though it passed both houses overwhelmingly at one time.) I find it odd the customers would go out to their vehicle to get their guns then go back in the store for a shootout. Did either of them have a carry permit? How legal is fetching your rifle? If these guys come forward, proving self-defense might be a challenge. But we can speculate all day. I'll shut up now.
Thank you for your indulgence,
BassCliff