2023-01-23T20:16:23Z
Russian billionaire Oleg Deripaska attends the St. Petersburg International Economic Forum (SPIEF) in Saint Petersburg, Russia June 17, 2022. REUTERS/Maxim Shemetov/File Photo
Charles McGonigal, a former FBI agent arrested over the weekend on accusations he worked for sanctioned Russian oligarch Oleg Deripaska, pleaded not guilty on Monday in federal court in Manhattan.