Marcel Petiot, French physician and serial killer (d. 1946)
Marcel André Henri Félix Petiot (17 January 1897 – 25 May 1946) was a French doctor and serial killer. He was convicted of multiple murders after the discovery of the remains of 23 people in the basement of his home in Paris during World War II. He is suspected of the murder of around 60 victims during his lifetime, although the true number remains unknown.