Carl Tanzler is known as Count Carl Von Cosel. He worked as a radiology technician at a hospital in Key West, Florida. He became obsessed with one of his patients, Elena Milagro de Hoyos and she died from Tuberculosis. Carl's obsession carried on after her death, he took her body from the mausoleum, and he kept her corpse for 7 years.
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Óscar Chávez - Boda Negra lyrics + English translation (lyricstranslate.com)