So you think there was premeditation on the part of the officer to kill this young man? That's what they need for first degree murder, depending on the specifics it would be probably be rightly classified as manslaughter. Just like if you got in a scuffle on the street and one punched someone and they died, that's manslaughter.
You were exactly right to see what the jury has to say, but we have the media making these circuses before the jury says anything, causing riots and shit, and totally painting a false picture just to upset and divide people. White people are shot by cops improperly not infrequently but almost never make the national news because that would ruin their false narrative.