Carl Tänzler (en.wikipedia.org)
Georg Carl Tänzler (also known as Count Carl von Cosel (February 8, 1877 – July 3, 1952), was a German-born radiology technologist at the Marine-Hospital Service in Key West, Florida. He developed an obsession with a young Cuban-American tuberculosis patient, Elena "Helen" Milagro de Hoyos (July 31, 1909 – October 25,...