Cartel Leadership Changes

Notoriously violent Miguel Angel Trevino Morales is now head of the Zetas cartel

A falling out between the leaders of the hyper-violent Zetas cartel appears to have put the gang in the hands of a brutal and feared gangster who has been blamed for an eruption of bloodshed in Mexico's once relatively calm central states.

Miguel Angel Trevino Morales is a former cartel enforcer who apparently won a showdown with Zetas founder Heriberto Lazcano Lazcano for leadership, law enforcement officials say.