Garry Kasparov recently made the same connection in this piece: https://www.theatlantic.com/international/archive/2025/02/pu...
> Berezovsky, who elevated Putin to power from behind the scenes, was soon exiled and replaced with more compliant oligarchs. He also met a grisly end—found hanged at his Berkshire mansion at 67—a precedent that might give pause to anyone thinking of risking his business empire to play that gray-cardinal role for the likes of Trump and J. D. Vance.