Alejandro “Omar” Treviño-Morales, code-named “Z42,” who took over the Los Zetas Cartel after the arrest of his brother, Miguel Treviño-Morales, was arrested on March 4. He was captured in the municipality of San Pedro Garza Garcia, part of Monterrey and the richest area of Nuevo Leon—traditionally a hangout for narcos from the Juarez Cartel and Beltran Leyva Organization.

Reportedly, Mexican authorities identified the Zetas’ financial officer, Carlos Arturo Jiménez Encinas, and set surveillance on him. By following him, they were able to get eyes on “Omar” entering a house in San Pedro Garza Garcia. Following positive ID, the operation was put in motion.

At midnight, the joint force of Marines and federal police surrounded the house that Z42 was staying in, as well as the house next door where Encinas was. After establishing a perimeter 200 meters out, the Army arrived and was placed on the cordon. Marines and police made the arrest, storming into the house at about 0400 and pulling Treviño-Morales out without any shots being fired.

The house where Treviño-Morales was arrested in San Pedro Garza Garcia. (Image courtesy of Milenio)