Has there been any concrete evidence that a police officer was "killed"?
I thought that I had read everything (many many versions) about the police officer's death...
IMHO, the only confirmed "killing" was of a young lady Trump supporter by an, as yet, unnamed police officer who wasn't even in the same room as she was...
So far the reports are that he died of head injuries and possible other body injuries. Fire extinguishers were definitely thrown by the rioters during the riots. It is a known Antifa/BLM tactic to use extinguishers to break windows and doors during Portland and Seattle riots all year long, so it could of been an attack by them posing as conservatives, or by rogue far-right extremists bent on destroying a legitimate protest.