Every weekday, we recommend a podcast related to a movie or TV show you can watch at home: In the summer of 1969, newspapers in San Francisco began receiving coded letters from a man who would come to identify himself as "the Zodiac." The killer confessed to a string of brutal murders and would go on to terrorize the Bay area into the early 1970s. For more episodes like this one, subscribe to Serial Killers on Spotify. Also, check out the film Zodiac, which is now available to stream!

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