Boris Yefimovich Nemtsov (Russian: ÐоÑÐ¸Ñ ÐÑÐ¸Ð¼Ð¾Ð²Ð¸Ñ ÐемÑóв; 9 October 1959 â 27 February 2015) was a Russian scientist, statesman and liberal politician. He had a successful political career during the 1990s under President Boris Yeltsin, and since 2000 had been…