Out of the top 3 Serial killers in the UK, 2 are women.
Mary Ann Cotton is Britains 3rd most prolific with a suspected 21 kills.
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www.capitalpunishmentuk.org/Mary_Ann_Cotton.html
www.chroniclelive.co.uk/news/history/who-was-mary-ann-cotton-11503447
murderpedia.org/female.C/c/cotton-mary-ann.htm
www.maryanncotton.co.uk
