Question: The cartel Rafael Caro Quintero's brother was the founder and former leader of was based in what country?

Documents:
source: Rafael Caro Quintero
text: Rafael Caro Quintero Rafael Caro Quintero (born October 3, 1952) is a Mexican drug trafficker who founded the now-disintegrated Guadalajara Cartel with Miguel Ángel Félix Gallardo and other drug traffickers in the 1970s. He is the brother of fellow drug trafficker Miguel Caro Quintero, the founder and former leader of the extinct Sonora Cartel who remains incarcerated.

source: Sonora Cartel
text: Sonora Cartel The Sonora Cartel, also known as Caro-Quintero Organization, was a Mexico based criminal cartel. Upon of the cartel's disintegration, its leaders were incorporated into the Tijuana Cartel and Sinaloa Cartel.

source: Ernesto Fonseca Carrillo
text: Ernesto Fonseca Carrillo Ernesto Fonseca Carrillo (born 1930 or 1942), commonly referred to by his alias Don Neto, is a convicted Mexican drug lord and former leader of the Guadalajara Cartel, an extinct 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, but later moved his operations to Mexico.

source: Servando Gómez Martínez
text: Servando Gómez Martínez Servando Gómez Martínez (born February 6, 1966), commonly referred to by his alias La Tuta (The Teacher) for once being a teacher, is a Mexican drug lord and former leader of the Knights Templar Cartel, a criminal organization based in the state of Michoacán. He is a former leader and founder member of La Familia Michoacana drug cartel, the split-off group of the Knights Templar. On February 27, 2015, he was arrested by Mexican security forces in Morelia, Michoacán.

source: Guadalajara Cartel
text: Guadalajara Cartel The Guadalajara Cartel (Spanish: "Cártel de Guadalajara" ) was a Mexican drug cartel which was formed in the 1980s by Rafael Caro Quintero, Miguel Ángel Félix Gallardo and Ernesto Fonseca Carrillo in order to ship heroin and marijuana to the United States. Among the first of the Mexican drug trafficking groups to work with the Colombian cocaine mafias, the Guadalajara cartel prospered from the cocaine trade.

source: John Clay Walker
text: John Clay Walker John Clay Walker (October 5, 1948 - January 30, 1985) was an American journalist and aspiring novelist who was abducted, tortured and murdered in Mexico by members of the Guadalajara Cartel under orders of their leader Rafael Caro Quintero. Caro Quintero suspected Walker of working as an undercover U.S. Drug Enforcement Agent (DEA) while he lived in Guadalajara, Jalisco.

source: Miguel Caro Quintero
text: Miguel Caro Quintero Miguel Angel Caro Quintero is a former Mexican Drug lord born in La Noria, Badiraguato, Sinaloa, Mexico, in 1963. He is believed to have been one of the leaders of the Sonora Cartel.

source: Francisco Rafael Arellano Félix
text: Francisco Rafael Arellano Félix Francisco Rafael Arellano Félix (24 October 1949 – 18 October 2013) was a Mexican drug lord and former leader of the Tijuana Cartel, a drug trafficking organization. He was the oldest of seven brothers and headed the criminal organization early in the 1990s alongside them. Through his brother Benjamín, Francisco Rafael joined the Tijuana Cartel in 1989 following the arrest of Miguel Ángel Félix Gallardo, one of the most prominent drug czars in Mexico during the 1980s. When the Arellano Félix took control of the organization in the early 1990s, tensions with the rival Sinaloa Cartel prompted violent attacks and slayings from both fronts.

source: Los Invasores de Nuevo León
text: Los Invasores de Nuevo León Los Invasores de Nuevo León is a Mexican band founded in 1978, originally as a Norteño quintet. Led by Lalo Mora and Javier Ríos, the group would become very popular on both sides of the Texas-Mexico border during the 80's and 90's. Many of their songs are still played on radio to this day, such as "Laurita Garza, Rafael Caro Quintero, Ni Dada La Quiero, La Costumbre, Bajo Mil Llaves, Que Valor De Mujer, Aguanta Corazón, Mi Casa Nueva and La Vieja Banca". Singer Isaías Lucero left for a solo career with EMI Records in 1999. The group's songs have included political themes, and criticism of US involvement in Latin America.

source: Héctor Beltrán Leyva
text: Héctor Beltrán Leyva Héctor Beltrán Leyva (born 15 February 1965) is a Mexican suspected drug lord and former leader of the Beltrán Leyva Cartel, a drug trafficking organization. He is the brother of Arturo Beltrán Leyva (deceased), former leader of the cartel. Héctor was the second-in-command and rose to the leadership of the criminal organization after his brother's death on 16 December 2009 during a confrontation with Mexican marines.

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Answer: Mexico