Born as Armando Martínez in Mexico during the 1970s, Alejandro Máynez experienced a challenging early life. He spent part of his childhood in orphanages in the United States. During the 1970s, he was adopted by Guillermo Máynez, a businessman from Chihuahua who owned approximately 20 bars and nightclubs in Ciudad Juárez. Following his adoption, his name was changed to Alejandro Máynez.

Throughout the 1980s and 1990s, Alejandro Máynez, along with his cousin Melchor Máynez, allegedly became involved in a gang that trafficked drugs and jewelry into the United States. During this period, they are suspected of committing numerous murders, primarily targeting women in Ciudad Juárez. In 1998, Alejandro met Ana Benavides, a waitress at one of his family's establishments. Instead of becoming a victim, Ana, who had already committed three murders and was a self-professed devil-worshipper, joined Alejandro in his criminal activities.

In 1995, a manuscript titled "El diario de Richie" surfaced, detailing several dozen murders in Ciudad Juárez. It is believed that Alejandro Máynez authored this document, which describes how many female victims were killed during orgies organized by members of organized crime, with some incidents allegedly recorded as snuff films.

Alejandro was arrested in 1992 for the murder of a woman in Chihuahua City but was accidentally released and subsequently disappeared. His current whereabouts remain unknown, and he is considered a fugitive. ​Due to the sensitive and ongoing nature of this case, information is continually evolving. Authorities continue to seek any leads that may result in the apprehension of Alejandro Máynez.​