Who is Z-40's brother?
Omar Treviño Morales: Óscar Omar Treviño Morales (born January 26, 1974) is a convicted Mexican drug lord and former leader of Los Zetas, a criminal organization. Omar Treviño Morales:  His brother is Miguel Treviño Morales, a former leader of the group. Miguel Treviño Morales: Miguel Ángel Treviño Morales (born 18 November 1970), commonly referred to by his alias Z-40, is a former Mexican drug lord and leader of the criminal organization known as Los Zetas.
Omar Treviño Morales