He Walked by Night (1948)
He Walked by Night is a 1948 black-and-white police procedural film noir, directed by Alfred L. Werker and Anthony Mann. The film, shot in semidocumentary tone, was loosely based on newspaper accounts of the real-life actions of Erwin "Machine-Gun" Walker, a former Glendale California police department employee and World War II veteran who unleashed a crime spree of burglaries, robberies, and shootouts in the Los Angeles area during 1945 and 1946.
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