Instead, it said, the Saudis on Wednesday invited the Turkish prosecutor and his delegation to Saudi Arabia jointly to question the suspects held there about what happened to Khashoggi's body and whether his death was premeditated.
"Now we see that they did not only dismember his body but also vaporised it".
No forensic evidence has been provided to prove his body was dissolved.
In their first version, they claimed Khashoggi was killed in a fight that was randomly triggered during a peaceful meeting, but their new story points to Turkish intel that shows the incident was planned by Saudi officials.
The reason why they broke up the body is to make it dissolve more easily.
The source said the body was handed over to a local "collaborator" after the killing, adding that it is not at the Saudi consulate in Istanbul. (Photo by AFP) "The global community has a duty to hold the Saudi Arabian government to account for its relentless repression of human rights in the country and its violations in the Yemen conflict", the top Amnesty worldwide official pointed out.
"Killing an innocent person is one crime, the treatment and extent of what was done to the body is another crime and dishonour", says Yasin Aktay.
"In accordance with plans made in advance, the victim, JamalKhashoggi, was strangled to death immediately after entering the consulate-general of Saudi Arabia in Istanbul on 2 October, 2018 for marriage formalities", chief prosecutor Irfan Fidan said.
She called upon all arms-supplying states to suspend their arms sales to Saudi Arabia and its regional allies as the munitions could be used to commit serious violations, including war crimes in Yemen. "It was meant to leave no trace of the body".
"We are reviewing putting sanctions on the individuals that we have been able to identify to date that have - that were engaged in that murder".
Amnesty International campaigners on Friday renamed the road outside the Saudi Arabian embassy in London as "Khashoggi Street" to mark the one-month anniversary of the dissident journalist's murder in Turkey.
The Turkish president said he did not believe that Saudi King Salman had ordered the killing.
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.
Prince Mohammad bin Salman, who has positioned himself as a Saudi reformer, has denounced the murder as "repulsive" and strongly denied any involvement. "Of all nations, the United States should be leading the way", Cengiz said in an opinion article published in the Washington Post, The Guardian and other media outlets on Friday.
Prince Turki reiterated that the Kingdom is committed to bringing to justice those responsible for Khashoggi's murder "and whoever else failed to uphold the law". "There is no explanation for this hate", she wrote. He denounced what he called "the demonization of Saudi Arabia".
The top United States diplomat has previously said the killing "violates the norms of worldwide law".