A leading Russian opposition politician, former deputy Prime Minister Boris Nemtsov, has been shot dead in Moscow, Russian officials say.
BBC: Russia opposition politician Boris Nemtsov shot dead
Russian opposition leader and former Deputy Prime Minister Boris Nemtsov (C) speaks as Leonid Martynyuk (R), Russian journalist and opposition activist from the Krasnodar region; and Vladimir Kara-Murza (L), senior policy adviser at the Institute of Modern Russia, listen during a news conference on \"Corruption and Abuse in Sochi Olympics\" January 30, 2014 at the National Press Club in Washington, DC. The Institute of Modern Russia held the news conference to launch a new online interactive \"corruption guide\" to the Sochi Olympics and the release of a report on \"Winter Olympics in the Sub-Tropics,\" which conducted by Nemtsov and Martynyuk. Alex Wong/Getty Images/AFP
