Kammala jumla mai zuwa: Da faduwar Manchukuo ga sojojin Soviet a lokacin
Bayan mamayewar Manchuria a watan Agusta 1945, Amakasu ya kashe kansa ta hanyar shan potassium cyanide. A rana ta ƙarshe ta rayuwarsa, Amakasu ya rubuta wasiƙar kashe kansa a ofishinsa kuma ya haɗiye kwayar cyanide.