Saudi government preparing to admit journalist died during interrogation, sources say -CCTV footage shows Khashoggi entering the Saudi consulate on October 2.
Trump told the CBS news show 60 Minutes there would be "severe punishment" if it is determined Khashoggi was killed inside the Saudi consulate, but Riyadh dismissed the USA threat and said it would retaliate if Trump took any action against Saudi Arabia.
Investigators entered the building in Istanbul on Monday afternoon - first a Saudi team followed roughly an hour later by Turkish forensic police.
Those policies are all seen as initiatives of the crown prince.
Virgin Group's Branson said he is suspending his work overseeing two Saudi tourism projects as well as talks with the kingdom's sovereign wealth fund about possible investments in his space ventures Virgin Galactic and Virgin Orbit. He was undertaking a flurry of engagements with top officials in Saudi Arabia on Tuesday.
The Saudi government has repeatedly denied any involvement in the journalist's disappearance and in a statement Sunday warned that "if it receives any action, it will respond with greater action". According to that narrative, the crown prince had approved an interrogation or rendition of Khashoggi back to Saudi Arabia, but the intelligence official was tragically incompetent as he eagerly sought to prove himself.
CNN received no response when reaching out to the CEO, managing director and organizers of the conference about whether a delay had been discussed.
Media reports say Khashoggi may have recorded his own death on his Apple Watch.
Just last week, Trump vowed to uncover the truth about what happened to Khashoggi and promised "severe punishment" for those responsible. American lawmakers have threatened tough punitive action against the Saudis, and Germany, France and Britain jointly called for a "credible investigation" into Khashoggi's disappearance.
But White House economic adviser Larry Kudlow says the conference will deal with terrorist financing and how to stop it, and that "at the moment", Mnuchin intends to go.
Mr. Trump also has cited Riyadh as a major customer of USA military exports, but oil is key in the end.
Dozens of media organisations - some of whom had set up tents - have kept a constant vigil outside the consulate in the expectation that the search would finally begin.
Turkish President Recep Tayyip Erdogan has always been pushing to move his country back into position as the recognized leader of the Islamic world.
September 28: Khashoggi visits the Saudi Consulate in Istanbul for the first time to pick up a permission document to marry Cengiz.
A joint Saudi-Turkish team arrived at the consulate in Istanbul's upscale 4th Levent neighborhood as journalists filmed and shot photographs of their arrival.
The three executives' companies have significant financial ties to Saudi Arabia.
The global conference, starting on 23 October, has been dubbed "Davos in the Desert", though the World Economic Forum says it has nothing to do with its annual event in the Swiss Alps.