According to the written confession of Sadakichi Yamaguchi on 21 August 1954, he was born in Chiba Prefecture, Japan in 1920. He joined the Japanese War of Aggression against China in 1940 and was captured in August 1945.

Major offences:

In October 1942: In Tai’an County, Shandong Province, “pushed down” a Chinese woman aged around 30 “on the ground and raped her”; later, Nakajima hiding somewhere nearby raped her too.

In December 1942: In Fushan County, Shandong Province, “captured a Chinese woman aged around 22, took her to a village” and raped her “by threatening her with a bayonet”.

In February 1943: In Linqing County, Shandong Province, “there was a woman aged about 40 and her kid aged about six. Matsui ran up to her, scolded her, and quickly slashed at her fore shoulder. The woman called her kid and moved towards the kid, Matsui hacked her to death from overhead. As the kid crept towards the mother crying, Matsui slashed at his back and stabbed him to death”. “Entering a civilian house, saw Sergeant Matsui, Commander of the Third Squad, and Private First Class Otani inserting a stick into the vagina of a woman aged about 40. When I heard Otani say the longer, the better, I gave him a shoulder pole, and he exerted himself to insert the pole into the woman’s vagina, brutally killing her”.

In September 1944: In Tai’an County, “bloated” a Chinese peasant aged about 35 “with cold water ”; “he spit out blood, half dead and unable to talk” and “died two days later”.