I have to disagree with your position on this.(not just this post)
If she had stepped thru, security should have made an arrest and put her in handcuffs. It wasn’t a situation that necessitated shooting especially into a crowded room where innocents or police could have been struck. I think the security guy paniced and made a bad decision. have doubts that he will ever work in that job again.
She and all the people behind her?
Wouldn’t she have been arrested earlier?