So relax if you don’t know anything about it.
We are discussing a news story and speculating, and so far we have two dead and at least one wounded, it will take a heck of a lot of new information to turn this disaster into a success.
I'm not saying I don't know anything about it. I'm pretty sure I know more about it than you do. I just don't have access to any 'special information' and as somebody asked me this morning if I did, I thought I'd make that clear.
I've been to the scene in the past - I'm not sure if I've been in that specific coffee shop, but I've certainly had coffee in that area.
I also know a fair bit about the police units and military units that would have been involved in this situation. I know a fair bit about the capabilities available to deal with events like this. These don't make mistakes very often. And I don't see any reason to assume they did.
These men put their lives on the line. Any one of them would willingly swap places with the two dead if that would bring them back.
If they made mistakes, that needs to be discovered. But you are not in a position to make that determination in any way, shape or form.