First the report by the experts will determine whether this girl needed to be killed.
Second it will also determine lethal force to kill was needed to disarm the girl.
Thir it wil also find out why it happened. For al lyou know these two individuals were involved in some drug deals so taking one side or the other is your stupid nature.
But your real stupidity is relating it to BLM and in effect saying that BLM is not needed.
You are fucking wrong because a lot of cities have taken on board the idea of defunding the police, training others to handle certain situations where police should not even be there never mind armed. And of course what will also come out is did this girl have mental issues and was it dealt with.
But the asshole that you are you just jumped in defending the police killing black people.
As to the media, they perhaps felt it was not appropriate to display such graphic detail and even the police referred to it as a tragic incident. Clearly not your interpretation or the fascist news media you are following.