Thomas Neill Cream

Thomas Neill Cream (27 May 1850 – 15 November 1892), also known as the Lambeth Poisoner, was a Scottish-Canadian medical doctor and serial killer who poisoned his victims with strychnine. Cream murdered up to ten people in three countries, targeting mostly lower-class women, sex workers and pregnant women seeking abortions. He was convicted and sentenced to death, and was hanged on 15 November 1892.

A popular rumour, started by hangman James Billington, claims that Cream's last words were "I am Jack the...", seemingly a confession to being Jack the Ripper. However, Billington is the only source for this alleged statement, and official records show that Cream was incarcerated in Illinois during the Ripper murders. Provided by Wikipedia