Capture and tattoo
In 1822, he was caught and tattooed, and banished from Edo. On August 8, 1831, he was captured again, and confessed to the burglary of over 100 samurai estates and the impressive theft of over 30,000 ryō throughout his 15-year career. He was tied to a horse and paraded in public before being beheaded at the Suzugamori execution grounds. His head was then publicly displayed on a stake. He was buried at Ekō-in located in the Ryōgoku section of Tokyo. So many pilgrims chip away pieces of his tombstone for charms that substitute stones have had to be constructed since shortly after his death.
At the time of the arrest, Jirokichi was found to have very little money. This, combined with the public humiliation he dealt out to the daimyo, resulted in the popular legend that he gave the money to the poor, turning the petty crook into a posthumous folk hero similar to Robin Hood. The fact that he died alone, serving his wives with divorce papers just prior to arrest in order to protect them from sharing in the punishment as the law decreed, further enhanced his stature.
Jirokichi's nickname, Nezumi Kozō, is not a name. Nezumi is the Japanese word for "rat"; a kozō was a young errand-boy who worked in a shop in the Edo period. The nickname can thus be roughly translated as "rat boy". Since a nickname containing the term kozō was often given to pickpockets, who were often youngs boys and girls since the profession required nimble fingers, it has been suggested that Jirokichi was a well known pickpocket when he was younger.