People participate in a rally in memory of Russian politician Boris Nemtsov in Moscow, Russia, on Feb. 26, 2017. Thousands of people gathered to participate in the rally in memory of Russian politician Boris Nemtsov here on Sunday. Nemtsov, former Russian deputy prime minister and an outspoken critic of President Vladimir Putin, was shot dead at about midnight on Feb. 27, 2015 near the Kremlin. (Xinhua/Evgeny Sinitsyn)