"Charles McGonigal, 54, was accused in a five-count indictment of working for Russian aluminum magnate Oleg Deripaska, who has been under U.S. sanctions since 2018. Sergey Shestakov, a former Russian diplomat turned U.S. citizen who worked as an interpreter for federal courts and prosecutors, was also charged in the scheme.

Federal prosecutors allege the pair worked for Deripaska to investigate an unnamed rival Russian oligarch in 2021 in violation of U.S. sanctions and worked to conceal their activity. Shestakov faces an additional charge of lying to FBI investigators."

Article
https://www.cbsnews.com/news/charles-mcgonigal-fbi-agent-charged-violating-russia-sanctions-oleg-deripaska/

Indictment
https://www.justice.gov/opa/press-release/file/1563486/download

DOJ Press Release 1
https://www.justice.gov/opa/pr/former-special-agent-charge-fbi-new-york-counterintelligence-division-charged-violating-us

DOJ Press Release 2
https://www.justice.gov/opa/pr/retired-fbi-executive-charged-concealing-225000-cash-received-former-intelligence-officer