 Félix Gallardo was serving his 37-year sentence at the Altiplano maximum-security prison but was transferred to a medium-security facility in 2014 due to his declining health.Born on a ranch in Bellavista, on the outskirts of Culiacán, Sinaloa, Félix Gallardo graduated from high school and studied business in college.He took a job as a Mexican Federal Judicial Police agent.