Ukrainian collaborator with Russia, former employee of the Security Service of Ukraine (SBU), pro-Russian political and military figure, one of the leaders and head of the 'security service' (until July 19, 2014) of the terrorist organization DNR (Donetsk People's Republic), Minister of State Security of the DNR (May 16 – July 16, 2014), Secretary of the DNR Security Council (November 13, 2014 – March 13, 2015), leader of the so-called 'Patriotic Forces of Donbas', former commander of the SBU 'Alpha' special unit in Donetsk region. Participant in the blockade of Mariupol on the side of Russian terrorists.