They left the Beast in San Luis Potosí and took a bus to Tamaulipas, approaching the border. In Nuevo Laredo, they were kidnapped by the Zetas, perhaps the most frightening of the Mexican crime syndicates. Known for beheadings and mass killings, these were ex-army commandos and cartel hitmen who had cornered the lucrative market of kidnapping and extorting migrants on their way to the US.
