Headquarter of Russia's state-owned oil giant Rosneft is seen through the jagged walls of Moscow's Kremlin. Ivan Sekretarev / AP A top executive from Russia's state-controlled oil company, Rosneft, has been found dead in central Moscow, according to the Life.ru news site. Oleg Erovinkin, Rosneft President Igor Sechin's chief of staff, was discovered in the back seat of a company Lexus by his drive