World Colombian drug lord ‘Don Mario’ pleads guilty to leading violent cartel that trafficked 81 tons of cocaine November 2, 2021Celina Tebor, USA TODAYComments Off on Colombian drug lord ‘Don Mario’ pleads guilty to leading violent cartel that trafficked 81 tons of cocaine Daniel Rendon Herrera, a Colombian crime boss known as "Don Mario," once fronted one of the world's most violent drug cartels, according to the DOJ.