None of that is relevant to this case. Racial tensions are high and it is entirely possible that had nothing to do with this guy’s death. There’s no evidence to conclude anything. That can change but right now the state cannot make claims they cannot support with actual evidence.

If they assert this was a racially motivated killing then they need to have suspects or direct evidence fir this (eg slurs written on the body) as it would be impossible to maintain this motive without them.