Ayala Fonseca of the Arellano Félix Cartel.

Gabriel Ayala Fonseca, known as “El Tres Animales,” or “The Three Animals,” has been identified as the leader of the Arellano Félix Cartel in Ensenada and responsible for much of the violence in the area due to a territorial dispute with the Sinaloa Cartel.

Daniel de la Rosa Anaya, the state’s security chief, said the capture was historic because Ayala Fonseca had been operating in Ensendada for many years.