Listen, there is evidence that the local cops were being racist. The FBI has already found that in their investigation, however, that in no way proves that this was a bad shoot.
For the evidence, look at the amount of car stops of blacks vs. whites in the city, plus the amount of paraphenalia and crimes reported due to those stops. It is way out of proportion. FoxNews showed that the amount of stops that led to either tickets/arrests/seizure of paraphenalia was 15% of stops in which the person stopped was black. However, it was 88% of the people stopped were black. Now, could there be an explanation sure, but when the two stats are put side by side they seem to be evidence of racial profiling. There are also many complaints by rookie officers against veterans for racially motivated situations.
Now, is it possible that the cop in this situation is racist? Yes. Does that mean his fatal shooting of the kid was illegal or wrong? No. Just because the police officer is racist (hypothetically) does not prove that he did not have reason to shoot. I can dream up multiple reasonable scenarios where that is possible. However, until the investigation is done, all of them, local, state, and federal investigations, we cannot say that the cop executed the kid, nor can we say that the kid was innocent.