Question: Elvis González Valencia was the brother of the drug lord known by what alias?
Context: On June 5, 2013, Argentine chef Federico Tobares disappeared while driving from Puerto Vallarta to Guadalajara, Jalisco, Mexico.  He was speaking on the phone with a friend and told her he was driving a vehicle for his boss to exchange for another.  He has been missing ever since.  Tobares had moved from Argentina to Mexico in 2009 to pursue a career as a chef specialized in Mexican cuisine.  He worked at Hotelito Desconocido and Nudoki, a hotel and restaurant in Jalisco.  According to investigators, these two businesses were owned by Gerardo González Valencia, a suspected drug lord of Los Cuinis, a branch of the Jalisco-based criminal group Jalisco New Generation Cartel. Gerardo González Valencia (born  1976 ) is a suspected Mexican drug lord, money launderer, and former high-ranking leader of Los Cuinis, a criminal group based in Jalisco and allied to the Jalisco New Generation Cartel (CJNG).  He is the brother of Abigael González Valencia (alias "El Cuini"), the former leader of Los Cuinis and the CJNG.  He was allegedly responsible for coordinating international money laundering schemes by using shell companies to purchase assets in Latin America, Europe, and Asia. Antonio Oseguera Cervantes (born August 20, 1958), commonly referred to by his alias Tony Montana, is a suspected Mexican drug lord and former high-ranking leader of the Jalisco New Generation Cartel (CJNG), a criminal group based in Jalisco.  His brother is Nemesio Oseguera Cervantes (alias "El Mencho"), the leader of the CJNG and one of Mexico's most-wanted drug lords.  In Mexico, he was formally charged in 2015 for drug trafficking and being in possession of military-exclusive firearms. Juan José Esparragoza Moreno (born February 3, 1949), commonly referred to by his alias El Azul (English: "The Blue One"), is a Mexican drug lord and leader of the Sinaloa Cartel, a drug trafficking organization.  Originally a member of the Dirección Federal de Seguridad (DFS) police agency, he founded the Guadalajara Cartel in the 1970s along with other drug kingpins in Mexico.  Following its disintegration in the late 1980s, he went on to lead the Juárez Cartel, and eventually settled in the Sinaloa Cartel.  He worked alongside Joaquín "El Chapo" Guzmán, once considered Mexico's most-wanted drug lord. Elvis González Valencia (born October 12, 1980), commonly referred to by his alias El Elvis, is a suspected Mexican drug lord and high-ranking leader of the Jalisco New Generation Cartel (CJNG) and Los Cuinis, two allied criminal groups based in Jalisco.  He was reportedly responsible for managing international drug trafficking operations and money laundering schemes under his brother Abigael González Valencia (alias "El Cuini") and brother-in-law Nemesio Oseguera Cervantes (alias "El Mencho"). Nazario Moreno González (8 March 1970 – 9 March 2014), commonly referred to by his alias El Chayo ("Nazario" or "The Rosary") and/or El Más Loco ("The Craziest One"), was a Mexican drug lord who headed La Familia Michoacana before heading the Knights Templar Cartel, a drug cartel headquartered in the state of Michoacán.  He was one of Mexico's most-wanted drug lords. Sister Street Fighter (女必殺拳 , "Onna Hissatsu Ken", UK title: "Revenge of the Dragon", German title: "Die Karate Tiger" ) is a spin-off of "The Street Fighter" (1974).  The plot revolves around Lǐ Hóng-Lóng (李紅竜 "Li Kōryū"), the female martial artist of the title.  When her brother Lǐ Wàn-Qīng is kidnapped by drug lords, she seeks revenge.  The drug lord's colorful collection of "killers" includes a toga-clad group of Thai Boxers called the "Amazons Seven", along with representatives of almost every martial art.  Hóng-Lóng breaks into the drug lord's compound with the help of Seiichi Hibiki (Sonny Chiba) and other members of the Shorinji Kempo dojo.  After all of his minions are defeated, the drug lord himself battles Hóng-Lóng, wearing a steel claw in imitation of Han, the villain from "Enter the Dragon" (1973). Abigael González Valencia (born October 18, 1972), commonly referred to by his alias El Cuini, is a suspected Mexican drug lord and former leader of the Jalisco New Generation Cartel (CJNG), a criminal group based in Jalisco.  He was also the head of Los Cuinis, an organization allied to the CJNG.  Along with his brother-in-law Nemesio Oseguera Cervantes (alias "El Mencho"), one of Mexico's most-wanted men, González Valencia reportedly coordinated international drug trafficking operations in the Americas, Europe, and Asia.  He was also responsible for managing the financial operations of the CJNG and Los Cuinis. Rubén Oseguera González (born February 14, 1990), commonly referred to by his alias El Menchito, is a suspected U.S.-born Mexican drug lord and former high-ranking leader of the Jalisco New Generation Cartel (CJNG), a criminal group based in Jalisco.  He is the son of Nemesio Oseguera Cervantes (alias "El Mencho"), one of Mexico's most-wanted drug lords.  Under his father, he allegedly worked as the CJNG's second-in-command and managed international drug trafficking operations. Gustavo González Castro (born 1 July 1973), commonly referred to by his alias "El Erótico" ("The Erotic One"), is a Mexican drug lord and founding member of Los Zetas, a criminal organization originally formed by ex-commandos from the Mexican Armed Forces.  He joined the Mexican Army as an infantry soldier in 1990, and ascended to the corporal unit five years later.  By 1999, however, González Castro had resigned and began working for the Gulf Cartel and Los Zetas along with several former military men.
Answer: El Cuini