He runs Internet Research Agency - which HACKED OUR ELECTION - and was indicted by Mr. Muller & Co. in February.
He also runs mercenaries in Syria via the Wagner group, which attacked US FORCES in February:
....Wagner is believed to be funded by Yevgeny Prigozhin, a rich businessman close to President Vladimir Putin. Mr Prigozhin is on the US sanctions list because of his links to the eastern Ukraine separatists.
In December 2016 the US Treasury said Mr Prigozhin had "extensive business dealings" with the Russian defence ministry and was linked to the construction of a new military base near Ukraine.
Unnamed US intelligence sources quoted by the Washington Post say Mr Prigozhin was in close contact with the Kremlin in the run-up to the assault on the Syrian Democratic Forces base in Deir al-Zour region. The force is said to have crossed the River Euphrates and shelled the base close to Khursham, a short distance from highly-prized oil fields.
According to the report, intercepted communications showed that Mr Prigozhin was also involved in the operational planning with Syrian officials, ahead of the attack....
http://www.bbc.com/news/world-europe-43167697 and https://taskandpurpose.com/russian-mercenaries-syria-leaked-audio/

Journalist Maxim Borodin died under suspicious circumstances in mid-April:
Maxim Borodin

...In recent weeks, the journalist had written about Russian mercenaries known as the "Wagner Group" who were reportedly killed in Syria on 7 February in a confrontation with US forces.
Last week, the outgoing head of the CIA, Mike Pompeo, said that "a couple hundred" Russian mercenaries died in the clash in Deir al-Zour province. The mercenaries were apparently taking part in an attack by pro-Syrian government fighters on the headquarters of a US ally, the Syrian Democratic Forces...
http://www.bbc.com/news/world-europe-43781351
Did Prigozhin have Maxim murdered? Well now, I do not know, and will chalk it up to well now, I do not know
Fuck this mobster Prigozhin - and his hundreds of mobster pals
goddamit