(FILES) - A picture taken on September 15, 2012 shows one of the opposition leaders, former first deputy prime minister Boris Nemtsov gesturing during an anti-Putin protest in central in Moscow. Boris Nemtsov was shot dead in Moscow on February 27, 2015, according to Russian officials. AFP PHOTO / KIRILL KUDRYAVTSEV
Photo by AFP
Russians shocked by Friday's assassination of opposition leader Boris Nemtsov are gathering to mourn in Moscow.