Yevgeniy Prigozhin, Russian mercenary leader who became Putin foe
Washington Post
The head of the Wagner Group, he broke with the Russian autocrat in June and attempted a wartime rebellion. He is believed to have died at 62 in a plane crash.
https://www.washingtonpost.com/obituaries/2023/08/26/yevgeniy-prigozhin-putin-wagner-dies/