 Once established in Tijuana, the Arellano Félix forged important relations with some of the most prominent families in the region.The flight, eventual arrest, and murder of Caro Payán angered his associates that headed the Sinaloa and Sonora Cartels.Two leaders of the Sinaloa Cartel, Joaquín "El Chapo" Guzmán, now jailed in the United States, and his business partner Héctor "El Güero" Palma, attempted to take control of Tijuana from the hands of the Arellano Félix in the early 1990s.