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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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More episodes
Britain's Most Evil Killers
S5, EP8 "Colin Pitchfork"Colin Pitchfork is the first person to be convicted of murder based on DNA fingerprinting evidence.
Britain's Most Evil Killers
S6, EP9 "Mark Martin: The Sneinton Strangler"The story of Mark Martin, who murdered three homeless women in his quest to become Nottingham's first serial killer.
Britain's Most Evil Killers
S5, EP7 "Sabah Khan"A woman murders her sister after developing a deadly obsession with her brother-in-law.
Britain's Most Evil Killers
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.
Britain's Most Evil Killers
S9, EP8 "Johnny Miller"Charlotte vanishes before her birthday and Johnny feeds her family lies to hide the truth; the police slowly piece together her final days, uncovering that Johnny killed her while the search for her remains continued.
Britain's Most Evil Killers
S9, EP2 "Gavin McGuire"Teen Mhairi is killed on her walk home after a festive night; investigators trace her last steps, using CCTV and forensics that point to Gavin, a violent repeat offender whose history reveals how dangerous he truly is.
