On September 22, 1186, from the letter he had sent to his ex-girlfriend who got married to another man, his place was located by Arisue KASUYA, a gokenin in Kamakura, who leaked the information, and he was attacked in the Nakamikado-Higashinotoin where he was hiding.
文治2年（1186年）9月22日、人妻であるかつての恋人に手紙を送った事から、鎌倉の御家人・糟屋有季に居所を密告され、潜伏していた中御門東洞院を襲撃される。