It is clear now even with the details released so far that not only did the police murder an innocent civilian in cold blood for no reason but they also deliberately and cynically lied in an attempt to cover up the incident, possibly hoping they could get away with what they had done.
They now admit to firing 11 shots or more, not the 3 (?) originally claimed. All other details they originally put out also seem to be completely at odds with the truth - he was not wearing a heavy coat but a denim jacket, he did not jump the barrier, he did not run but saunterd and picked up a paper, he was not challenged by police. Bottom line is, the police were not heros. They were not in any kind of "situation" other than a shambles of their own making.
The people concerned should resign, as high up as it goes, and the appropriate people jailed IMO.