Sara Aldrete

Sara María Aldrete Villareal is a Mexican serial killer who was convicted of murder while heading a drug-smuggling and human sacrifice cult with Adolfo Constanzo. The members of the cult, dubbed by the media as The Narcosatanists, called her The Godmother, with Constanzo as "The Godfather". The cult was involved in multiple ritualistic killings in Matamoros, Tamaulipas, including the murder of Mark Kilroy, an American student killed in Matamoros in 1989. She received a sentence of 62 years.