Dr. Marcel Petiot (France, WWII Era)

Marcel Petiot was a French physician who offered “escape routes” to those fleeing Nazi-occupied France during World War II—but, in truth, lured them to his Paris home where he would rob and murder them. He disposed of victims’ remains in his basement furnace or through quicklime. Investigators found over 20 bodies on his property in 1944, though Petiot claimed he was just targeting Nazi collaborators. He was captured in 1944, tried in 1946, and found guilty of multiple murders. He was executed by guillotine soon after.