The Hitler-obsessed gunman who murdered a Canadian tourist and wounded 13 others at an ancient Mexican temple apparently was trying to recreate the gory rituals of the ancient people who built it nearly 2,000 years ago. “Don’t move, or I’ll sacrifice you,” Julio César Jasso , 27, could be heard shouting in a video taken by one of his hostages, who huddled on the platform on the 140-foot-tall Pyramid of the Moon in the ruined city of Teotihuacan Monday. Teotihuacan — once the grandest