Mezue ahịrịokwu na-esonụ: Na ọdịda nke Manchukuo na Soviet agha n'oge
N'oge mwakpo nke Manchuria n'August 1945, Amakasu gburu onwe ya site n'ịṅụ potassium cyanide. N'ụbọchị ikpeazụ nke ndụ ya, Amakasu dere akwụkwọ ozi ọ na-ede n'ọfịs ya ma ṅụọ ọgwụ cyanide.