Everyone should be aware that the final say is provided by Putin. And is a foregone conclusion - for purely tactical and propaganda reasons, the official version will be that Prigozhin is dead. And nobody will contest that - least of all Prigozhin himself.
Be advised: I recognize this person joining and speedrunning Ban% in safespaces for several months now. This is at least my 4th sighting of them. They will antagonize the userbase in record time by blatant disregard of netiquette and basic human decency. They will cite any of their vast repertoire of mental conditions or minority membership cards as justification when called out on bad behavior - whatever is convenient at the time. Conversation to them is a game that must be won at all cost and people with even slightly differing opinions are seen as enemies that need to be defeated (and also humiliated) Their strategy is generally to single out one member and harass them with wall of text posts.
Do not engage. Do not educate - dozens have tried and failed. Just identify the pattern and ban permanently, before they can do any lasting damage to your community.