Newly discovered archival documents suggest Adolf Hitler's half-niece Geli Raubal died on September 18, 1931, not September 19 as previously recorded, potentially placing Hitler in Munich when her body was found. The 23-year-old was found dead from a gunshot wound in Hitler's apartment, officially ruled suicide, but historian Harold Sandner's findings raise questions about a possible murder cover-up by Nazi-sympathetic police officials.