Saudi Crown Prince Mohammed bin Salman attends the Future Investment Initiative (FII) conference in the Saudi capital Riyadh on October 23, 2018. - Saudi Arabia is hosting the key investment summit overshadowed by the killing of critic Jamal Khashoggi that has prompted a wave of policymakers and corporate giants to withdraw. (Photo by FAYEZ NURELDINE / AFP)        (Photo credit should read FAYEZ NURELDINE/AFP/Getty Images)