The arrest and extradition of Cárdenas, however, caused for several top lieutenants from both the Gulf Cartel and Los Zetas to fight over important drug corridors to the United States, especially the cities of Matamoros, Nuevo Laredo, Reynosa, and Tampico—all situated in the state of Tamaulipas. They also fought for coastal cities Acapulco, Guerrero and Cancún, Quintana Roo; the state capital of Monterrey, Nuevo León, and the states of Veracruz and San Luis Potosí. Through his violence and intimidation, Heriberto Lazcano took control of both Los Zetas and the Gulf Cartel after Cardenas' extradition. Lieutenants that were once loyal to Cárdenas began following the commands of Lazcano, who tried to reorganize the cartel by appointing several lieutenants to control specific territories.Morales Treviño was appointed to look over Nuevo León; Jorge Eduardo Costilla Sánchez in Matamoros; Héctor Manuel Sauceda Gamboa, nicknamed "El Karis", took control of Nuevo Laredo; Gregorio Sauceda Gamboa, known as "El Goyo", along with his brother Arturo, took control of the Reynosa plaza; Arturo Basurto Peña, alias "El Grande", and Iván Velázquez-Caballero alias "El Talibán" took control of Quintana Roo and Guerrero; Alberto Sánchez Hinojosa, alias "Comandante Castillo", took over Tabasco. However, continual disagreement was leading the Gulf Cartel and Los Zetas into an inevitable rupture.