MECCA, SAUDI ARABIA - SEPTEMBER 24: Prospective pilgrims walk to stone the devil as part of the annual Islamic Hajj pilgrimage at Jamarat during the first day of Eid Al Adha in Mecca, Saudi Arabia on September 24, 2015.At least 753 Muslim Hajj pilgrims were killed  and at least another 450 injured  in a stampede that took place in the town of Mina near the city of Mecca, located roughly five kilometers east of Mecca, as pilgrims performed a ritual in which they threw stones at a structure representing the devil. (Photo by Ozkan Bilgin/Anadolu Agency/Getty Images)