19th Century Killing Machine Like Save Duration: 46:44 Mary Ann Cotton, hanged in Durham in 1873, was a Victorian Black Widow. Killing for greed, she murdered husbands, stepchildren, her mother and even her own children. Disclaimer: This summary might be generated by an AI. Machine Learning: Living in the Age of AI Hovercraft - Ultimate Amphibious Machine The Sacred Link Between Men and Elephants Change and the Dream of Justice - Reinventing the World (4/6) Edward Jenner: The Man Who Invented Vaccines