The criminals were considered to be Mototsuna MIWADA and Masatane MOROOKA, disciples of the school of Atsutane HIRATA in the study of Japanese classical literature, and retainers of the Aizu Clan were also concerned.
犯人は平田篤胤派国学の門人である三輪田元綱、師岡正胤とされ、会津藩士も関与。