Harald Gullberg, a 66-year-old Swedish man, was found deceased in Lincoln Park, San Francisco, on June 4, 1975. His death is believed to be linked to an unidentified serial killer known as "The Doodler," who was active between 1974 and 1975. The Doodler was known for sketching his victims before fatally stabbing them, primarily targeting gay men in bars and nightclubs. Gullberg was the last known victim of this elusive murderer.
The investigation into Gullberg's death, along with the othe
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