Yevgeny Prigozhin accumulated wealth, influence and international intrigue through his relationship with Vladimir Putin, but he now appears to have turned his Wagner mercenary force against Putin's regime.
The big picture: After Russia invaded Ukraine, Prigozhin's Wagner forces became a key part of the war effort, particularly in the long and brutal battle for Bakhmut. But Putin has now accused the mercenary boss of treason for organizing what Kremlin officials have described as an "armed rebellion" inside Russia.