Before revision: Johann Otto Hoch, also known as the Bluebeard Murderer and the Chicago Bluebeard, was a bigamist and murderer, believed to have killed up to 50 victims, active 1890-1905.
After revision: Johann Otto Hoch, also known as the Bluebeard Murderer and the Chicago Bluebeard, was a bigamist and murderer, believed to have killed up to 50 victims, active