Ensio Kalevi Koivunen (23 June 1930 – 27 May 2003) was a Finnish serial killer who poisoned three female hitchhikers using carbon monoxide in the summer of 1971, and thereby got the nickname Häkä-Enska ("Carbon monoxide-Enska").
Born |
23 June 1930
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Died |
27 May 2003 (aged 72)
|
Zodiac | Cancer |
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