You are calling people out about assumptions, and saying Joss was "acting erratically" and I would like to point out that you don't know that his "erratic" behaviour wasn't in response to anything, nor who may have incited him to act that way.
Just because he didn't point the finger at someone for one crime or another, doesn't mean he did it either. He may have been covering for someone to either save face or avoid escalation.
I'm not saying I know either, and that's my point. You see some reports and news stories and you've drawn conclusions and made assumptions based on that without really knowing if any of the assumptions you made are correct.
The only person who really knew is dead now, at the hands of someone who clearly had issues getting along with him.
This argument is stupid. They might not know but neither do you.
You still need a PD willing to gather, keep secure and submit evidence that portrays it as a hate crime. The detectives and LEO's involved may be hiding statements, motives, physical evidence, etc, by simply not recording it as such.