Who Yevgeny Prigozhin was.
Yevgeny Prigozhin, who led a failed mutiny against Vladimir Putin, was on a plane that crashed in western Russia, say aviation officials
Authorities say all 10 people on board were killed after the private aircraft came down near the village of Kuzhenkino
They also say the passengers included Prigozhin, who is the head of mercenary group Wagner, and his right-hand man Dmitry Utkin
Russian authorities have launched an investigation into the cause of the crash, amid heavy speculation
Prigozhin kept a low public profile since he led his mutiny in June, which lasted only 24 hours
He last appeared in a video earlier this week which was said to have been filmed in an unspecified location in Africa
The Wagner mercenary group was founded in 2014 and was highly active in the Ukraine war until the mutiny