Overall, this situation is blown out of proportion.
NYPD is in the wrong for excessive force, which is somewhat justified as the man was resisting arrest (and as we can see, he is very large), and not listening to the man as he was gasping out 'I can't breathe' (which yes, can be heard).
The man was in the wrong for resisting arrest and committing the crime in the first place.
This is not a 'white cop killing black man out of revenge' situation, this is a 'excessive force used to hold down a large man' situation.