Miguel Ángel Félix Gallardo (born January 8, 1946), commonly referred to by his aliases El Jefe de Jefes ('The Boss of Bosses') and El Padrino ('The Godfather'), is a convicted Mexican drug kingpin who was one of the founders of the Guadalajara Cartel, which controlled much of the drug trafficking in Mexico and the corridors along the Mexico–United States border in the 1980s.
Félix Gallardo was arrested in 1989 for ordering the murder of Drug Enforcement Administration (DEA) agent Enrique "Kiki" Camarena. He was serving his 40-year sentence at the Altiplano maximum-security prison but was transferred to a medium-security facility in 2014 due to his declining health.
Source : Wikipedia
