Your thinking is warped.
The first thing law enforcement does in a similar situation is to secure the area. That means get the citizens off the street and far enough away that they won't be in danger or a danger to themselves or anyone else. DUH. No one did that in Beslan. Is that a mistake? I'd say so.
Now, am I blaming the inept law enforcement for the hostage situation? NO. But am I saying it wasn't handled properly? YES.
I've read the accounts from different papers from different countries. My only proof is the accounts in the papers. I wasn't there.
And if you'd like to know if I believe in the right of a citizen to bear arms...YES. But I don't think armed townspeople ought to be allowed to stand behind the soldiers or law enforcement officers during a stand-off.
You may disagree with that, but there's a reason that's normal practice and procedure for law enforcement.