There are unforgettable stories throughout the history. Japanese troops captured Nanjing on December 13, 1937, and started a 40-odd-day slaughter. About 300,000 civilians and unarmed Chinese soldiers were brutally murdered. CCTV interviewed John Magee’s grandson Chris Magee, Japanese professor Hiroshi Tanaka and opera actor Li Shi, who performs in "The Diaries of John Rabe," an opera chronicling the massacre.