Rubuta ci gaba ga wannan sakin layi - Tare da faduwar Manchukuo ga sojojin Soviet yayin 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.