World's Most Evil Killers
Less than 20 minutes after dropping her children off at school, Rachel O'Reilly was murdered.
Less than 20 minutes after dropping her children off at school, Rachel O'Reilly was murdered.
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Scott and Lori Gellatly had a whirlwind romance followed by an abusive marriage.
Frances Hall was humiliated when her childhood sweetheart Bill had a long affair.
Recordings provide evidence to solve the death of a man's wife; a feud leads to a fatal house fire.
A 13-year-old girl is found stabbed over a hundred times; a teenager comes under suspicion.
Investigators uncover a twist in one murder case, and digital evidence raises questions in another.
Two missing mothers were linked when evidence tied Derek Brown to both their violent deaths.
Less than 20 minutes after dropping her children off at school, Rachel O'Reilly was murdered.
When Carol Jarvis disappears, her husband tells people that she's simply gone on a little holiday.
A serial killer works as a nurse in Texas and kills infants by injecting them with drugs.
A fugitive from the United States tackles the British police and goes on the run.
In 1999 and 2000, John Eric Armstrong cruised the streets looking for sex workers.
Robert Hansen was a monster who preyed on vulnerable women.
Stuart Campbell was convicted of the murder of his 15-year-old niece in 2002.
Two criminals who met in prison strike up a friendship, which had deadly consequences.
A look into the case of a sadistic killer, who posed as an MI5 agent in order to murder his victim.
The story of one of the most prolific serial killers in Canadian history, "The Pig Farmer Killer."
Jane Longhurst vanished after making a plan to go swimming with her friend's boyfriend.
The 'Trash Bag Killer' confessed to killing 32 victims.
Two ladies lure men to their hotel rooms and rob them; a mother's command to kill her husband.
Roena Ashing enlists a group of friends to murder a mentally disabled man.
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