Russian presidential candidate Ksenia Sobchak along with the leaders of the Russian democratic forces led a march joined by thousands of people in memory of murdered opposition politician Boris Nemtsov in Moscow on Sunday. The commemorative march started in central Moscow and ended with a flower-laying ceremony at the site of Nemtsov's death. According to the Russian interior ministry, more... Еще than 4,500 people joined the authorised march. Similar marches commemorating slain Nemtsov are to be held in dozens cities across Russia. Former Deputy Prime Minister Nemtsov was gunned down by four shots in the back on Bolshoy Moskvoretsky Bridge in the centre of Moscow on February 27, 2015.