 However, both Rafael and Miguel Caro Quintero had recently rejected offers to join the Sinaloa Cartel due to a fallout with the sons of imprisoned former leader Joaquín Archivaldo Guzmán over leadership status.Despite this, both were said to be on good terms with de jure Sinaloa Cartel leader Ismael "El Mayo" Zambada, who was now in poor health.Ex-DEA agent Mike Vigil continued to downplay Caro Quintero's role in the drug trafficking business and stated that "He will fall before he dies of old age."