A demonstrator dressed as Saudi Arabian Crown Prince Mohammed bin Salman (C) with blood on his hands protests outside the Saudi Embassy in Washington, DC, on October 8, 2018, demanding justice for missing Saudi journalist Jamal Khashoggi. - US President Donald Trump said October 10, 2018 he has talked to Saudi authorities 'at the highest level' to demand answers over what happened to missing journalist Jamal Khashoggi.
Trump told reporters at the White House that he talked to the Saudi leadership 'more than once' since Khashoggi, a US resident and Washington Post contributor, vanished on October 2 after entering the Saudi consulate in Istanbul. (Photo by Jim WATSON / AFP)        (Photo credit should read JIM WATSON/AFP/Getty Images)
;ISTANBUL, TURKEY - OCTOBER 08:  Nobel Prize winner Tawakkol Karman (5th-L) holds a poster of Saudi journalist Jamal Khashoggi during a protest outside Saudi Arabia's consulate on October 8, 2018 in Istanbul, Turkey. Fears are growing over the fate of missing journalist Jamal Khashoggi after Turkish officials said they believe he was murdered inside the Saudi consulate. Saudi consulate officials have said that missing writer and Saudi critic Jamal Khashoggi went missing after leaving the consulate, however the statement directly contradicts other sources including Turkish officials. Jamal Khashoggi a Saudi writer critical of the Kingdom and a contributor to the Washington Post was living in self-imposed exile in the U.S.  (Photo by Chris McGrath/Getty Images)
ISTANBUL, TURKEY - (ARCHIVE) : A file photo dated May 6, 2018 shows Prominent Saudi journalist Jamal Khashoggi in Istanbul, Turkey. Saudi journalist Jamal Khashoggi died after a brawl inside the Saudi consulate in Istanbul, Saudi Arabia announced Saturday. (Photo by Omar Shagaleh/Anadolu Agency/Getty Images)