Serial killer's letters auctioned

A collection of letters penned by a 19th century mass murderer are going under the hammer. Serial murderer Mary Ann Cotton, known as the 'Black Widow', wrote from her Durham prison cell before being executed in 1873. She was suspected of poisoning 21 people including family and lovers.

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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.