Khashoggi, a former palace insider who turned critic, was strangled to death at the Saudi consulate in Istanbul on October 2 and his body dismembered, the city's chief prosecutor has said.
CSIS director David Vigneault recently travelled to Turkey to listen to the recording Turkish authorities have of the killing and briefed Prime Minister Justin Trudeau as well as other top officials upon his return.
Speaking to CNN's Jake Tapper on Tuesday, Bob Baer, who worked at a Central Intelligence Agency case officer primarily in the Middle East, said the USA has purposely muted its response to journalist Jamal Khashoggi's murder. "Saudi Arabia is a volcano and to try and push the Crown Prince out, we don't have any players [in Saudi Arabia] on our side, so we don't know what to do", Baer said.
Samples taken from the drains at the Saudi consulate in Istanbul showed traces of acid, pro-government daily Sabah said, without quoting sources.
US National Security Adviser John Bolton said he did not think that people who heard the recordings concluded that the crown prince was linked to the killing.
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"It's obvious that this murder was premeditated and that the order came from above", it cited Erdogan as saying on his way back from Paris where he met President Donald Trump.
Turkey's Erdogan said Saturday that his country had shared the recordings with Saudi Arabia, the United States, the United Kingdom, Germany and France, although confusion has swirled over which countries have and haven't listened to the recordings.
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The crown prince is not specifically mentioned by name during the audio recording, according to the Times.
Earlier this day, The New York Times revealed that the Saudi intelligence officer, Maher Mutrib, has called one of the Crown Prince's assistants from Istanbul, asking him to inform his boss that the mission had been accomplished. "It should be uncovered who gave the order to kill".
Mr Trump has not had anyone in the position since he was inaugurated in January 2017, even though he made Riyadh his first foreign visit. Qahtani has wielded that influence over the last three years, with his authority growing alongside that of the young prince.
He also supervised the brief detention, humiliation and beating of Lebanese Prime Minister Saad al-Hariri a year ago.
On Sunday, a Turkish journalist claimed Khashoggi's last words were: "I'm suffocating. take this bag off my head, I'm claustrophobic". The images are said to have been taken as the Saudis passed through security checks at the terminal when they left the country.
They include the killing itself and conversations before the operation which Turkey subsequently uncovered, the sources said.
Saudi public prosecutor Saud al-Mojeb has since said that Khashoggi's killing was planned in advance, although another Saudi official said Prince Mohammed had no knowledge of the specific operation.