Its funny to me that with the current state of Russia this guy could have died with absolutely zero interference from the state and the rest of the world will assume he was killed no matter what comes out of Russian media, purely due to their track record with this sort of thing.
Not sure why I'm being downvoted, I'm not trying to suggest that this death isn't suspicious, just commenting that even if it wasn't people wouldn't believe the Russians due to how often this happens.