In May 1918, Rutherford and seven other Watch Tower directors and officers were arrested on charges of sedition under the Espionage Act. On June 21, 1918, they were sentenced to 20 years' imprisonment. Rutherford feared his opponents would gain control of the Society in his absence, but on January 2, 1919, he learned he had been re-elected president at the Pittsburgh convention the day before. However, by mid-1919 about one in seven Bible Students had chosen to leave rather than accept Rutherford's leadership, forming groups such as The Stand Fast Movement, Paul Johnson Movement, Dawn Bible Students Association, Pastoral Bible Institute of Brooklyn, Elijah Voice Movement and Eagle Society.