Wrong! In this case I can give in that the teachers may not have been as educated in this stuff. But there were too many red flags for anyone to think he wasn't going to hurt the children in some way. I doubt anyone on this thread would have had the thoughts you just mentioned.
I disagree. He had ties with him - it was an obvious hostage situation. He was not going to kill immediately, otherwise why have all the ties? And in that time, anything could have happened to stop it - but unfortunately not in this case. But to take it from a situation where he might not shoot, to one where he has to, would be a mistake.
I do not want to argue nor cast any more negativity here. However, if you have never had a gun pulled on you, or held to your head, please don't presume to know how you would react.
The decision forced upon this teacher will most likely haunt her for years to come.