A woman places a candle at the site of the killing of Russian opposition veteran leader Boris Nemtsov in central Moscow, Russia, 01 March 2015. Later opposition will hold a march in the memory of murdered Kremlin critic Boris Nemtsov, having replaced the scheduled on 01 March opposition rally ‘Vesna’ (Spring). Boris Nemtsov, one of the organizers of the Vesna rally, was shot dead late in the evening of 27 February while walking on the Bolshoy Kammeny bridge near the Kremlin. EPA/SERGEI ILNITSKY