Initially, the investigator was hopeful that their case might shed some light on Heather’s own motivations. Born in 1905 and 1911, respectively, Christine and Léa Papin started out as sweet kids — before they started to change. The girls had been born to troubled parents, whose infidelity and alcoholism broke up their marriage. They were sent away to live with their aunt and uncle, where things quickly escalated to dark extremes.