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.
Wouldn't that have been a red flag to you...that something pleasant wasn't going to happen? Even more reason not to leave little children alone.
Well, what is done is done. So we need to move on from here. It is just a sad sad thing all around.