At about 2 a.m. on April 21, 2010, a convoy of gunmen working for the Zetas drug cartel, one of the most violent drug trafficking organizations in the world, rolled into Monterrey, Mexico, a wealthy, bustling city considered that country’s commercial capital. With brazen efficiency, they set up roadblocks at all major thoroughfares, then sent a convoy of sport utility vehicles downtown, encircling a Holiday Inn.
The heavily armed men, some wearing ski masks, swarmed into the hotel’s lobby and rushed directly to the fifth floor, bursting into every room and rousting the guests from their beds. The gunmen questioned the guests, then separated four of them from the rest: a marketing executive at an eyewear company, a chemical engineer for a cosmetics manufacturer, a shoe salesman expecting his first child, and a college professor who was the mother of two.
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