Media captionHow has the death of Jamal Khashoggi impacted the war in Yemen?
"They aimed to ensure no sign of the body was left", said Aktay, who was a friend of the dissident Saudi writer.
Saudi Arabia has faced a torrent of worldwide condemnation over the killing of the royal insider-turned-critic.
No forensic evidence has been provided to prove his body was dissolved.
"But now we see that they didn't just cut it up, they dissolved the body".
Hatice Cengiz, Khashoggi's fiancee, has written in the Washington Post, calling on the worldwide community to bring the perpetrators to justice.
Anonymous Saudi officials have pushed a theory that Jamal Khashoggi's body was rolled up in some kind of fabric and given to a Turkish coconspirator.
Amnesty International activists will rename the street outside the Saudi Arabian embassy in central London as "Khashoggi Street" on Friday to mark a month since Saudi journalist Jamal Khashoggi was murdered in the Saudi consulate building in Turkey.
"It was a historic moment for the Saudi Crown Prince to openly welcome Evangelical Christian leaders to the Palace".
The phone call is reported to have taken place on 9 October, a week after Khashoggi disappeared.
The American right-wing Christian delegation, which included Mike Evans, founder of the Jerusalem Prayer Team, met with Saudi foreign minister Adel al-Jubeir, Saudi ambassador to the USA prince Khalid bin Salman and secretary-general of the Muslim World League Mohammed al-Issa.
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He appeared in WWE's "Greatest Royal Rumble" earlier this year in Saudi Arabia, defeating Triple H in the show's opening match. WWE Crown Jewel is set to take place on Friday, at the King Saud University Stadium in Riyadh, Saudi Arabia .
"If those who persecute journalists get away with their crimes - and are allowed to continue with business as usual - it only invites more of the same", he said.
The kingdom, however, later admitted that Khashoggi had been murdered in the consulate during an interrogation by rogue operatives that had gone wrong after diplomatic pressure grew tremendously on Riyadh to give an account on the mysterious fate of its national.
"We're continuing to understand the fact pattern", Pompeo said Thursday during an interview with Missouri-based KMOX news radio.
Khashoggi vanished after entering the consulate in Istanbul to pick up paperwork for his upcoming marriage to his Cengiz, who was waiting for him outside.
Turkey's chief prosecutor on Wednesday confirmed for the first time that Khashoggi was strangled as soon as he entered the consulate on October 2 as part of a planned hit, and his body was then dismembered and destroyed. However, as worldwide pressure increased, Riyadh admitted that the killing was an error, carried out by rogue elements.
Prince Mohammed, who in recent years has loosened strict social rules and arrested Saudi clerics deemed extremists, said in April that Israelis are entitled to live peacefully on their own land. Turkey wants the suspects to be extradited.
Saudi Arabia has denied the media reports.
"Officials cautioned that no decision has been made, and Trump has expressed little desire to significantly alter US-Saudi relations, but there is an interest in a full vetting of the potential options", the Post said. However, he also said he was unwilling to sacrifice lucrative arms deals with the country.
"We underlined how seriously we take this issue again yesterday, when he was at the Foreign Ministry for a discussion".
Earlier, the United States called for a swift cessation of hostilities in Yemen, where a Saudi-led coalition has been fighting rebels supported by its arch-enemy Iran.
In an editorial published in five global newspapers, Ms Cengiz said Khashoogi had just bought a house and wished to start a family. She termed the Trump administration "devoid of moral foundation".