Complex sentence: The lesser-known offshoot, Black Legion, was also active in the Detroit area; 48 members were convicted of numerous murders and attempted murder in 1936 and 1937, ending its run.
Split into simpler sentences: The lesser-known offshoot, Black Legion, was also active in the Detroit area. In 1936 and 1937, some 48 members were convicted of numerous murders and attempted murder, ending its run.