February 2, 1933Le Mans, FranceSisters Christine (27) and Léa (21) Papin kill and mutilate two of their employers Christine and Léa had begun working for the Lancelin family — René, Léonie, and their adult daughter Geneviève — in 1926 as live-in maids. Seven years later, they killed Léonie and Geneviève. On the evening of February…