Murder by the Sea

12:00 AM to 1:00 AM
Sunday 29 December
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Britain's Worst Female Serial Killer

Season 9 Episode 4 of 10

Despite only being trialled and convicted for the death of a single victim, Mary Ann Cotton is often classed as Britain's worst female serial killer.

Murder by the Sea airs on True Crime at 12:00 AM, Sunday 29 December.
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