The Black Legion was a KKK splinter group operating in the 1930s. Centered in Michigan the Legion was also active in Ohio.
AP described the organization on May 31, 1936, "as a group of loosely federated night-riding bands operating in several States without central discipline or common purpose beyond the enforcement by lash and pistol of individual leaders' notions of 'Americanism.'"
They were allegedly responsible for numerous murders of alleged communists and socialists.
Date unknown, paper unknownSources: Wikipedia
Police Reopen Probe of Two Weird Killings
Anonymous phone call: “Look into the muders of those two men in the gully at E. 49th Street and you’ll find the Black Legion was responsible.”
Eliot Ness personal scrapbook, property of Western Reserve Historical Society