One DEA agent, Enrique Camarena Salazar, was working as an informant and grew close to many top drug barons, including Félix Gallardo. In November 1984, the Mexican military—acting on the intelligence information provided by Camarena—raided a large marijuana plantation owned by the Guadalajara Cartel and known as "Rancho Búfalo". Angered by the suspected betrayal, Félix Gallardo and his men exacted revenge when they kidnapped, tortured, and killed Camarena in February 1985. The death of Camarena outraged Washington, and Mexico responded by carrying out a massive manhunt to arrest those involved in the incident. Guzmán took advantage of the internal crisis to gain ground within the cartel and take over more drug trafficking operations. In 1989, Félix Gallardo was arrested; while in prison and through a number of envoys, the drug lord called for a summit in Acapulco, Guerrero. In the conclave, Guzmán and others discussed the future of Mexico's drug trafficking and agreed to divide the territories previously owned by the Guadalajara Cartel. The Arellano Félix brothers formed the Tijuana Cartel, which controlled the Tijuana corridor and parts of Baja California; in Chihuahua state, a group controlled by Carrillo Fuentes family formed the Juárez Cartel; and the remaining faction left to Sinaloa and the Pacific Coast and formed the Sinaloa Cartel under the traffickers Ismael "El Mayo" Zambada, Palma, and Guzmán. Guzmán was specifically in charge of the drug corridors of Tecate, Baja California, and Mexicali and San Luis Río Colorado, two border crossings that connect the states of Sonora and Baja California with the U.S. states of Arizona and California.