http://en.wikipedia.org/wiki/Yoshio_Kodaira
He is believed to have raped and murdered ten women between May 25, 1945 and August 6, 1946 in Tochigi and Tokyo. After the fifth murder, he committed necrophilia with the corpse. His murder victims included teenagers. He also raped about 30 women in addition to his murder victims.
Mark Schreiber's Shocking crimes of postwar Japan gives the following victims:
May 25 1945--Miyazaki Mitsuko,19
June 22 1945--Ishikawa Yori,30
July 12 1945--Nakamura Mitsuko,32
July 15 1945--Kondo Kazuko,22
September 28 1945--Matsushita Yoshie,21
October 31 1945--Shinokawa Tatsue,17
December 30 1945--Baba Hiroko,19
June 30 1946--Abe Yoshiko,15
August 6 1946--Midorikawa Ryuko,17
August 1946--unknown victim,around 20
Schreiber gives Kodaira's military/civil career as follows:
1923--joined Navy,served on Yamagi & Kondo.Travelled to Europe,Australia.
1927--with NLF in Shandong
1928--Jinan Incident, " bayoneted six Chinese soldiers".Dagu Massacre.
1929--discharged with rank of NCO
1932-murdered father-in-law
1940--released in 2600th Anniversary Amnesty
1942--grader operator on Saipan airfield
1944--returned to Japan,second marriage
1945--boiler operator,Naval Quartermaster Facility,Shinagawa