Like everyone else, I don't have the full facts - but nothing has come to light so far that suggests this is anything other than a justified use of force by the police.
We recently had a aggravated burglary by four offenders in a house a few doors away, who were chased across our back gardens in the dark by unarmed 'first response' officers. They successfully apprehended one of the burglars. Not sure what happened to the others. I hope with the helicopter etc they made further arrests.
I am glad that the we have a professional police force which is prepared to put its own officers on the line to protect the public. I'm not saying it is perfect - but there aren't many better police forces.