In August 1999 , Nemtsov became one of the co-founders of the Union of Right Forces , a then new liberal-democratic coalition which received nearly 6 million votes , or 8.6 % of the vote , in the parliamentary elections in December 1999 . Nemtsov himself was elected to the State Duma , or lower house of Parliament , and became its Deputy Speaker in February 2000 . In May 2000 , Sergei Kiriyenko resigned and Nemtsov was elected leader of the party and its parliamentary group . Over 70 % of delegates at the Union of Rightist Forces congress in May 2001 confirmed him as party leader . According to Nemtsov , the Union " always consisted of two factions , a Nemtsov faction and a Chubais faction " , with the former " based on principles and ideology whereas the Chubais faction was pragmatic , existing by the rules of realpolitik . " In 2002 , his name appeared on a list of several individuals the hostage-takers during the Moscow theater hostage crisis were willing to speak to directly . Nemtsov did not take part in the negotiations and later said that Putin had ordered him not to go
Moscow theater hostage crisis
Moscow theater hostage crisis
Boris Nemtsov