John Svahlstedt
Swedish serial rapist (1947–2025)
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John Thure Charles Walentin Svahlstedt, later Hadarson, dubbed Södermannen, Hagamannen and Fönstermannen by the police and media alike, was a Swedish serial rapist active in the areas of Södermalm, Stockholm and Haga, Gothenburg from the 1970s to 1980s.
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