TOPSHOT - A man wears a mask of killed journalist Jamal Khashoggi during a commemoration event of Khashoggi's supporters on November 11, 2018 in Istanbul. - US Secretary of State Mike Pompeo told Saudi Crown Prince Mohammed bin Salman on November 11, 2018 that the US will hold accountable all involved in killing a dissident Saudi journalist. (Photo by OZAN KOSE / AFP)