Who is Wagner chief Yevgeny Prigozhin
former Putin ally who once sold hotdogs?
Yevgeny Prigozhin is the head of private mercenary group Wagner
He was once an ally of Russian President Vladimir Putin.
At the age of 20, Prigozhin was sent to prison for robbery
After serving a decade-long sentence, he set up a hotdog stand and soon started a catering business which provided services to Kremlin, earning him the nickname 'Putin's chef'.