By Randal C. Archibald, New York Times, 2/4/2015
MEXICO CITY — The leader of the Zetas — a Mexican criminal group notorious for its brutal murders — was arrested Wednesday without a shot fired in northern Mexico, as the authorities toppled yet another kingpin in a long and aggressive campaign against the group.
Federal police officers and soldiers swooped in on the leader, Omar Treviño Morales, known as Z-42 in the group’s militaristic system of code names, in San Pedro Garza García, an affluent suburb of Monterrey, Mexico, a business and industrial hub.
Mexico Institute 