Known as the black widow, Mary Ann Cotton murdered for over 20 years before getting caught. Join us as we delve deeper into her dark history.

Souce Materials:

Dark Angel: How were Mary Ann Cotton's terrible crimes uncovered? https://www.radiotimes.com/tv/drama/dark-angel-how-were-mary-ann-cottons-terrible-crimes-uncovered/

She poisoned 21 people including her own mother, children and husbands. So why has no-one heard of Briain's FIRST serial killer, Mary Ann Cotton? https://www.dailymail.co.uk/femail/article-2096423/Mary-Ann-Cotton--Britains-FIRST-serial-killer-poisoned-21-people-including-mother.html

Victorian serial killer Mary Ann Cotton's possessions on display. https://www.bbc.com/news/uk-england-38045280