"I was with my friends [when I found out]," says Alina. "I was broken. I really thought that it couldn't happen. Never." "We never thought it could happen": it's a phrase I have heard so often from Russians in recent times. Later the riot police try to clear the square in front of the memorial. "Move along. No-one is allowed to gather here," says an officer. "We have the right to be here," shouts a woman. "We want to stand here and we will. This street isn't yours. It belongs to everyone." The police don't think so.