Shiro Azuma (東 史郎, Azuma Shirō; April 27, 1912 – January 3, 2006) was a Japanese soldier who openly admitted his participation in Japanese war crimes against the Chinese during World War II. He was one of the few former soldiers of the Empire of Japan to admit to his participation in the 1937 Nanjing Massacre. After his confession, he visited China seven times to apologize and help Chinese scholars find more evidence of the Japanese soldiers' brutality. He prepared an eighth trip to Nanjing but died of cancer on January 3, 2006 in Kyoto.
Source: “Shiro Azuma”, English Wikipedia (CC BY-SA 4.0), excerpt