People come to the Nanjing Massacre Memorial Hall to mourn the victims of the Nanjing massacre committed by Japanese invading troops during World War II, in Nanjing, capital of east China's Jiangsu province, Dec. 12, 2009. Dec. 13, 2009 is the 72nd anniversary of the Nanjing massacre, which left 300,000 Chinese people dead. [Dong Jinlin/Xinnhua]