Ni Hongying, the youngest daughter of Wan Xiuying, a Nanjing Massacre survivor who passed away on July 25 at the age of 91, mourns before her mother's deadee during a mourning ceremony held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, east China's Jiangsu Province, July 31, 2019. Wan's death reduced the number of survivors to 82. Nine survivors passed away this year, according to the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders. (Xinhua/Ji Chunpeng)