Turkish officials, on the other hand, have been releasing evidence and brutal recordings of Khashoggi being beaten, drugged, murdered and dismembered in the Saudi consulate in Istanbul. "I think we have to find out what happened first", he said. "I will be forever grateful he chose The Post as his final journalistic home one year ago and gave us the chance to work together".
Turkish police on Wednesday began searching the residence of the Saudi consul in Istanbul for their investigation, with forensics experts in white overalls entering the building, an AFP correspondent said.
Le Maire said Saudi authorities needed to explain the disappearance of Khashoggi after he went to the Saudi consulate in Istanbul on October 2.
US President Donald Trump says the US has asked Turkey for an audio recording of Jamal Khashoggi's death which reportedly proves he was brutally tortured before his premeditated murder inside the Saudi consulate in Istanbul.
Ahead of his disappearance, Washington Post columnist Khashoggi was highly-critical of Saudi Arabia's authoritarian kingdom's Crown Prince Mohammed bin Salman. "As a result, Arab governments have been given free rein to continue silencing the media at an increasing rate", he wrote.
In it, Khashoggi pointed to the muted global response to ongoing abuses against journalists by governments in the Middle East. He also called for Congress to "sanction the hell out of Saudi Arabia".
Pompeo had previously expressed confidence that the Saudi probe into Khashoggi's disappearance would be "thorough, complete and transparent".
Khashoggi provided examples of crackdowns on the free press in the Arab world, actions he said prevent citizens from knowing the true facts and coming to their own conclusions on issues.
Confirming that the tape said to provide evidence of the killing had been requested, Mr Trump added: "I'm not sure yet that it exists, probably does, possibly does".
Missing journalist Jamal Khashoggi's Turkish fiancee Hatice Cengiz wait in front of the Saudi Arabian consulate in Istanbul on October 3, 2018.
Top Saudi officials have repeatedly denied any involvement in Khashoggi's disappearance - denials that they repeated to Pompeo when he visited Saudi Arabia on Tuesday. But the president has since floated an alternative theory involving "rogue killers" and compared the case to the sexual assault allegations against recently confirmed Supreme Court Justice Brett Kavanaugh.
Khashoggi also covered the Gulf War, and his time as a foreign correspondent quickly propelled him into a successful career as a journalist and editor in Saudi Arabia.
The New York Times had reported that Mutreb had travelled extensively with the Crown Prince, perhaps as a bodyguard.
Meanwhile, International Trade Minister Liam Fox has been told to pull out of a business conference in Saudi Arabia next week as finance ministers from France and the Netherlands and prominent banking executives have scrapped their plans to attend.