Given the latest information of the events, without the gratuitous tazering, and the knifeman being an mentally ill resident looking for a showdown, rather than a common car thief then I'm happy to comment that shooting to kill seemed a reasonable final response by the police in this instance.

If further details come out, and it turns out we have whole new set of circumstances, then it is fair enough if a whole new set of conclusions have to be drawn. It is a forum and we debate with the details we have at the time.

But as it stands it seems a pretty good and lucky ending, with no police casualties, and the guy somehow alive and getting treatment.