Serial killer's letters sold

Letters written by the 19th century mass murderer Mary Ann Cotton, known as the 'Black Widow', have been sold in North Yorkshire.

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Full Report: Letters of "Black Widow" go under hammer

Letters written by a woman thought to be Britain's first serial killer are to be sold at an auction in North Yorkshire.

The letters were penned by Mary Ann Cotton in the 19th century from her prison cell in Durham jail.

She was suspected of killing over 20 people - including her own children, husbands and lovers.

You can watch the full report from Frances Read below.

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