MEXICO CITY, MEXICO - MARCH 04: Omar Trevino alias "El Z-42" leader of criminal organisation "Los Zetas" is presented by Mexican Army after his arrest in the Mexican State of Nuevo Leon at the PGR Hangar on March 04, 2015 in Mexico City, Mexico. The criminal organisation led by Trevino is recognized as one of the most dangerous in Mexico and second in size after the "Pacifico Cartel" (Photo by Hector Vivas/LatinContent via Getty Images)
