Horror at ancient ruins: Gunman kills tourist, wounds 13 atop Mexico pyramid

A Canadian tourist was killed, and 13 others were injured — including several Americans — after a crazed gunman held a group of people hostage atop a pyramid at Mexico’s famous Teotihuacan ruins. The gunman climbed midway up the Pyramid of the Moon — a nearly 2,000-year-old structure that was once used for ritual human...