My cousin in Toluca called this morning before I'd even seen it online. 78 years old, and all I could think of was Reyna González Amador's name, the one he never managed to hide.
Their story
Andrés Filomeno Mendoza Celis (29 November 1947 to 29 October 2026) was a Mexican butcher and serial killer whose arrest in May 2021 exposed one of the most disturbing femicide cases in Mexico's modern history. Known in the Mexican press as "el Caníbal de Atizapán" and "el Monstruo de Atizapán",…
Andrés Filomeno Mendoza Celis (29 November 1947 to 29 October 2026) was a Mexican butcher and serial killer whose arrest in May 2021 exposed one of the most disturbing femicide cases in Mexico's modern history. Known in the Mexican press as "el Caníbal de Atizapán" and "el Monstruo de Atizapán", he was linked by prosecutors to at least 19 victims, most of them women, and was serving life imprisonment plus several additional sentences when he died in custody at the age of 78.
Mendoza was born in Zimatlán de Álvarez, in the southern state of Oaxaca. For decades he lived in a house on Margaritas Street in the Lomas de San Miguel neighbourhood of Atizapán de Zaragoza, State of Mexico. He worked for years as a butcher in a slaughterhouse preparing meat in neighbouring Tlalnepantla, a skill investigators later said helped him dismember bodies. In 2015 he served as president of his neighbourhood's citizen participation council under the municipal administration of Ana María Balderas Trejo, and neighbours who spoke to reporters after his arrest described a quiet older man who appeared at community events and political rallies.
On 15 May 2021 Mendoza was arrested after the disappearance of Reyna González Amador, a 34-year-old mother of two who sold mobile phones and had gone to his house the day before. Her husband, a serving police officer, went to the property and returned with a patrol unit; officers found her dismembered body inside. Searches of the house over the following weeks uncovered thousands of bone fragments buried under concrete floors, along with voter identification cards, clothing, shoes, bags and make-up belonging to women, video and audio cassettes, and notebooks listing names and dates. By mid-2022 the State of Mexico prosecutor's office said the remains numbered more than 4,000 fragments linked to at least 19 people, described as 17 women, a child and a man. One notebook entry was dated 1994, suggesting the killings stretched across nearly three decades, and prosecutors said the real number of victims could be 30 or more.
According to his ministerial statement, Mendoza met most of his victims in bars in Tlalnepantla where they worked and he drank, invited them to his house, and killed them by stabbing. Named victims identified in public reporting include Reyna González Amador, Flor Nínive Vizcaíno Mejía, Rubicela Gallegos Castillo, Norma Jiménez Carreón and Berenice Sánchez Olvera. Investigators also linked him to the disappearance of a seven-year-old boy.
The courts handed down eight convictions between March 2022 and February 2024. The first, for the femicide of Reyna González Amador, carried life imprisonment. Further sentences followed: 55 years in October 2022, 92 years in January 2023 for femicide, homicide and the disappearance of a woman and a child, four more 55-year terms during 2023, and an eighth conviction on 8 February 2024 that included reparations to victims' families. In June 2022 Mexico's Supreme Court of Justice co-produced the documentary series "Caníbal: Indignación total", broadcast on Las Estrellas, to examine the case and the wider crisis of violence against women.
Mendoza died in the early hours of 29 October 2026 at the Centro Penitenciario y de Reinserción Social in Tenango del Valle, State of Mexico, where he was held in an area for older and vulnerable inmates. State security secretary Cristóbal Castañeda Camarillo confirmed the death and said preliminary findings pointed to complications of existing illnesses; media reports cited hypertension, type 2 diabetes and respiratory problems. An autopsy was ordered and no final forensic ruling had been published. In the days that followed, reports said no relatives had claimed his body and that authorities were trying to locate a sister.
His death prompted renewed calls from families and campaigners to keep identifying the remaining victims, many of whom have never been named. This page records the documented facts of his life and crimes, and stands alongside the memory of the women and child whose lives he took.
Biography adapted from English and Spanish Wikipedia; Infobae (29 Oct 2026); La Jornada (30 Oct 2026); PorEsto; Tiempo Regio; Diario de Morelos; El País; State of Mexico prosecutor's office reports.
In their own words
“No niego, me culpo yo también. Yo lo único que quiero es decir la verdad. Lo hecho pues ya está. (I do not deny it, I blame myself too. All I want is to tell the truth. What is done is done.)”
Mendoza at his first court hearing in May 2021, as reported by Mexican media.
“Ya no se remedia nada. (Nothing can be fixed now.)”
Mendoza speaking at a hearing in 2021, as reported by Noticias Telemundo.

I remember that name too. Her husband was the one who found her.