games in the history of mankind. they steal about 25 billion dollars. >> reporter: for recently ukrainian president said nemtsov was about to reveal information that would prove russia's involvement in the conflict in ukraine, sig that quote, someone was very afraid of that. some mourners believe that someone was putin or his supporters. do you believe that mr. putin, president putin, is responsible for this killing is this. >> we do believe in this sthr but the kremlin says this tragic killing was simple isly designed to damage russia and to create a political storm. well the popularity of vladimir putin is still skylight latest opinion polls suggesting that it's 86% which is absolutely incredible. the big question is will this killing change those opinion poll numbers or will they simply it -- will it simply send a message that if you oppose the