MEXICO CITY - It was a normal school day for 14-year-old Fernando Martí, son of a sporting goods mogul, but it was not the normal route taken by his driver and his bodyguard to the British American School. Then, a makeshift roadblock on a busy thoroughfare, men dressed in black with guns. It was a setup, and Fernando was the target.
Wearing vests with the initials of Mexico's Fede...
