Alberto Sicilia Falcon was a Cuban drug lord active in Mexico.
A prominent high-society cocaine trafficker, Sicilia Falcon shipped cocaine into the United States through the Tijuana corridor. He mentored the Arellano Felix brothers; allowing them to establish marijuana shipping routes through his territory.
In the early 1980s, he was approached by Miguel Ángel Félix Gallardo; one of Pedro Avilés' men, to solicit his permission in permitting the Arellano brothers in joining an alliance between various marijuana smugglers. Convinced by his personal friend and socialite Isabella Bautista, Sicilia Falcon agrees to Félix Gallardo's requests on the condition that they do not interfere with his cocaine business.
However a few years later, Félix Gallardo, now the leader of the powerful Guadalajara cartel decides to smuggle Colombian cocaine, as the Caribbean route used by the Colombians was closed down by the United States. Enraged by the betrayal, Sicilia Falcon uses his influence to order a military raid on one of the weed warehouses of cartel leader Rafael Caro Quintero. The military seize most of the weed, and destroy the rest. In retaliation, Don Neto of the Guadalajara cartel buys out the police force of Tijuana and attacks one of Sicilia's warehouses, setting it on fire after recovering Rafael's marijuana.
Félix Gallardo sends Isabella to negotiate a truce with Sicilia Falcon, and she succeeds in doing so. However, the DFS immediately kill Sicilia Falcon after she leaves, giving the complete control of Tijuana to Félix Gallardo.