 Camarena, who had been working undercover in Mexico, was said to be responsible for leading the authorities to the ranch.This allegedly prompted Caro Quintero and other high-ranking members of the Guadalajara Cartel to seek revenge against the DEA and Camarena.In retribution, Camarena and his pilot Alfredo Zavala Avelar were kidnapped in Guadalajara on February 7, 1985, taken to a residence owned by Quintero located at 881 Lope de Vega in the colonia of Jardines del Bosque, in the western section of the city, brutally tortured, and murdered.