"Erdogan clearly seems to believe that he can use the Khashoggi crisis as a way to cut Prince Mohammad bin Salman, and by extension, Saudi Arabia, down to size", Heras added.
After initially insisting Khashoggi left the consulate unharmed, then saying he died in a brawl during an interview gone wrong, the Saudi regime admitted he was killed, blaming a "rogue operation".
The attempt to criticise Khashoggi in private stands in contrast to the Saudi government's later public statements decrying his death as a "terrible mistake" and "terrible tragedy", the sources said.
The U.S. has already revoked the visas of the men allegedly responsible for the killing of The Washington Post columnist.
The remarks represented the first official statement from a Turkish authority about what allegedly happened to Khasoggi's body.
Pompeo emphasized that U.S. President Donald Trump has vowed accountability for all involved in the "heinous crime".
Israeli Prime Minister Benjamin Netanyahu called the slaying "horrendous" and said it must be dealt with. These newly revealed ties reflect concerns by both Israel and Arabs over Iran's rising influence in the region.
The State Department said Friday that it will continue to seek a full investigation into the slaying of USA -based Saudi writer Jamal Khashoggi as it marked International Day to End Impunity for Crimes Against Journalists.
Instead, Cengiz said, "Some in Washington are hoping this matter will be forgotten with simple delaying tactics".
Activists from the London-based NGO temporarily erected a mock street sign in front of the diplomatic compound, in the British capital's wealthy Mayfair district, in a symbolic gesture honouring Jamal Khashoggi. "There will be no coverup".
An adviser to Erdogan said last week that MbS, as the crown prince is informally known, had "blood on his hands" over Khashoggi's killing, the bluntest comments yet from someone linked to Erdogan about Riyadh's de facto ruler in connection with the death. But because of its deep investment in Prince Mohammed as the main linchpin of the administration's Middle East agenda, the Trump administration concluded it could not feasibly limit his power.
She said: "Our pain is still as fresh as the first day".
The murder of the royal insider-turned-dissident has provoked widespread outrage against Riyadh and fuelled an worldwide debate about arms deliveries to Saudi Arabia, a key Washington ally against Iran.
Khashoggi has been missing since October 2 when he entered the Saudi Consulate in Istanbul.
"We have requested information from Saudi officials regarding the whereabouts of Jamal Khashoggi's body and the identity of the supposed local collaborator".
Khashoggi's family have denounced any suggestion the journalist participated in Brotherhood activities.
Mojeb and his team visited the Turkish city earlier this week, ostensibly to share intelligence on Khashoggi's death and killers.