Black guy killing a white kid is most certainly race related.
Same goes for the other way around.
It’s nearly impossible to separate race out of interracial crimes. By their very nature race is involved. And society reacts differently to interracial crime than it does to intraracial crime.
The referenced article does not state the race of the homeless man who may/may not have been the aggressor. In your belief system, does the race of the homeless man have anything to do with whether race was a factor? Suppose the homeless man was black. Would assuming that the homeless man was the aggressor have also been racism?
Doesn’t seem there’s much to investigate. From your own article.
From video and social media posts about the incident, it appears the deputies mistook the unarmed teens as the aggressors and held them at gunpoint while several bystanders tried to tell them that the boys were the victims.
Nothing to indicate it had anything at all to do with race much less your claim of, " For the crime of being assaulted while black".
They responded to a violent assault, not the least bit surprising they’d approach with guns drawn.