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Ernesto Fonseca Carrillo

Mexican drug lord (born 1930)

2 min read

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Interest in “Ernesto Fonseca Carrillo” spiked on Wikipedia on 2026-02-28.

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2026-01-30Peak: 4,3542026-02-28
30-day total: 38,750

Key Takeaways

  • Ernesto Fonseca Carrillo (August 1, 1930), commonly referred to by his alias Don Neto , is a Mexican drug lord and former leader of the Guadalajara Cartel, a defunct criminal group based in Jalisco.
  • Fonseca Carrillo was involved with drug trafficking since the early 1970s, primarily in Ecuador, and later moved his operations to Mexico.
  • Early life Ernesto Fonseca Carrillo was born in Badiraguato, Sinaloa.
  • According to the Drug Enforcement Administration (DEA), he was born in 1942.
  • His son, Gilberto Fonseca Caro was shot and killed on February 13, 1983, outside the Arena Coliseo in Tijuana following a boxing match.

Ernesto Fonseca Carrillo (August 1, 1930), commonly referred to by his alias Don Neto, is a Mexican drug lord and former leader of the Guadalajara Cartel, a defunct criminal group based in Jalisco. He headed the organization alongside Miguel Ángel Félix Gallardo, and Rafael Caro Quintero. Fonseca Carrillo was involved with drug trafficking since the early 1970s, primarily in Ecuador, and later moved his operations to Mexico.

Fonseca is the uncle of former Juárez Cartel leader, Amado Carrillo Fuentes.

Early life

Ernesto Fonseca Carrillo was born in Badiraguato, Sinaloa. Sources disagree on his exact date of birth. According to the Drug Enforcement Administration (DEA), he was born in 1942. Other sources say he was born on August 1, 1930. His son, Gilberto Fonseca Caro was shot and killed on February 13, 1983, outside the Arena Coliseo in Tijuana following a boxing match.

Drug trafficking

Fonseca and other narcotics traffickers created and operated El Búfalo (The Buffalo), a ranch in Chihuahua which is one of the largest marijuana plantations in history by square footage.

Charges and arrest

The United States Drug Enforcement Administration (DEA) in 1982 indicted Fonseca in a money laundering operation in San Diego. Prior to the DEA receiving permission to wiretap the phones where Fonseca was thought to be hiding, Fonseca fled back to Mexico. On April 7, 1985, Fonseca was located in Puerto Vallarta by the Mexican Army, his villa was surrounded, and he surrendered.

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