On 31 May 1923, in Mecklenburg, Höss and members of the Free Korps attacked and beat to death local schoolteacher Walther Kadow on the wishes of farm supervisor Martin Bormann, who later became Hitler's private secretary. Kadow was believed to have tipped off the French occupational authorities that Höss' fellow Nazi, paramilitary soldier Albert Leo Schlageter, was carrying out sabotage operations against French supply lines. Schlageter was arrested and executed on 26 May 1923; soon afterwards Höss and several accomplices, including Bormann, took their revenge on Kadow. In 1923, after one of the killers confessed to a local newspaper, Höss was arrested and tried as the ringleader. Although he later claimed that another man was actually in charge, Höss accepted the blame as the group's leader. He was convicted and sentenced (on 15 or 17 March 1924) to ten years in Brandenburg penitentiary, while Bormann received a one-year sentence.