Zetas: Omar Treviño Morales, un capo con oposición | Internacional | EL PAÍS
Quién es Omar Treviño Morales, el 'Z42'?
Mexico captures drug lord 'Z-42' | The Spokesman-Review
Omar Treviño, el temible "Z-42" por quien la DEA ofrecía US$5 millones
Omar Trevino Morales (front L), known as the Z-42 leader of the Zetas drug cartel, is escorted by soldiers during a media conference on his arrest, in Mexico City March 4, 2015.