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A woman murders her sister after developing a deadly obsession with her brother-in-law.
A woman murders her sister after developing a deadly obsession with her brother-in-law.
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Britain's Most Evil Killers
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S5, EP8 "Colin Pitchfork"Colin Pitchfork is the first person to be convicted of murder based on DNA fingerprinting evidence.
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S6, EP10 "Malcolm Green"Malcolm Green is jailed for life for the brutal murder of a Cardiff prostitute; he kills again when he is released after 18 years.
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S6, EP8 "Geoffrey Evans & John Shaw"Geoffrey Evans and his accomplice John Shaw hit headlines in 1976 after the murders of two women in Ireland.
