Firstly and primarily, one awaits all the details and hopes justice takes its proper course.
In the meantime, his family and various various hangers-on & local politicians bleating on about what a wonderful guy he was with such a bright future is getting grating. It's alleged he was an active member of a conspiracy to murder someone, the car he was driving being used (I believe) as the getaway vehicle in a pre-meditated shooting the day before. His alleged co-conspirators are all in prison and go to trial in November. If the allegations based on the available evidence are true, he was in fact a highly dangerous violent thug.
That is of course no justification for killing him. However, the suggestion is that when he was boxed in by the police, there was 'contact'. If you have a look at the photo in the BBC article you can clearly see the scrape damage on the white car, and the position of the police car. The shot was taken directly in front of him. If he saw the gap between the two cars and tried to escape by forcing his way through, and a cop was standing in the gap, then it's clearly arguably reasonable to have shot him in the way it appears was done, on the grounds he was using the car as a weapon.
Now I don't necessarily think that charging the cop is wrong even if all those circumstances are true. A court case allows all the evidence to be examined and a proper decision taken as to was that really the right thing to do in all the circumstances, perhaps he should have simply got out of the way (if he could). But currently this absurd narrative that it was a racially motivated murder of an innocent unarmed man is allowed to play unopposed, and I don't think that is right, or just, or helps anyone, particularly if the cop is eventually aquitted.