They already knew by heart the chilling threat the kidnappers used to introduce themselves: “We are Los Zetas! Don’t move or we’ll kill you!” In these small towns, there’s no need of an ID, or any other kind of credential, to prove Zeta membership. If someone says they’re a Zeta, they’re a Zeta. If they say they’re a Zeta and they’re not a Zeta, it won’t be too long before they’re dead. At
