Khashoggi has retained ambiguous ties to Saudi authorities, having held advisory positions in Riyadh and Washington - including to Prince Turki al-Faisal, who ran Saudi Arabia's intelligence agency for more than 20 years. He left the country previous year for the United States fearing retribution from the kingdom which has recently witnessed widespread crackdown on dissent. "The consulate officials can not save themselves by simply saying "he has left", Erdogan told a news conference in Budapest on Monday.
David Rohde, executive editor of The New Yorker tweeted out, "The journalist Jamal Khashoggi had said that the Saudi crown prince, Mohammed bin Salman, has 'no tolerance or willingness to accommodate critics'".
Turkey's official Anadolu News Agency said Saturday that the Istanbul public prosecutor's office began a probe into Khashoggi's disappearance Tuesday, immediately after he went missing. This group is considered to have a connection with the disappearance of Khashoggi.
A Turkish official told the AP late Saturday that an "initial assessment" by police concluded Khashoggi had been killed at the consulate.
"The entries and exits from the consulate are. all being investigated now and being followed and all departures and arrivals from the airport are all being followed and our police force is controlling them and at the same time various units of our police chasing it", he said.
However, Khashoggi's other friend, the well-known Brotherhood leader Azzam al-Tamimi, expressed his disappointment regarding the Turkish denial and strongly criticized Erdogan for that. She accused Saudi Arabia of "state terrorism" and called on the worldwide community to take action against the kingdom.
A man places a poster of missing Saudi writer Jamal Khashoggi, on a barrier that blocks the road leading to the Saudi Arabia consulate in Istanbul, as people gather in his support, Friday, Oct. 5, 2018.
He said the consulate was equipped with cameras but they did not record footage, so no images could be retrieved of Khashoggi entering or leaving the consulate, which is ringed by police barriers and has high security fences topped with barbed wire.
Khashoggi's fiancee, Hatice Cengiz, said he first went to the consulate at September 28 to obtain a document related to their upcoming wedding and he returned Tuesday with concern he wouldn't be allowed to leave.
Reuters journalists toured the six-storey consulate in northern Istanbul which Khashoggi entered on Tuesday to get documents for his forthcoming marriage.
Ever since the relationship started between Saudi Arabia and the United States of America, we've bought everything with money, he further said, adding that since Trump came to power, the kingdom chose to purchase over 60 percent of its needed armament from the U.S. for the next 10 years.
Why it matters: The incident threatens a diplomatic crisis in Turkey's relations with Saudi Arabia.
Local media said Ankara requested permission for Turkish investigators to search the consulate building, but a Foreign Ministry official would not confirm the report.
"The worrying trend that we see is a crackdown on critical and independent journalism in Saudi and about Saudi", Robert Mahoney, Deputy Executive Director of CPJ, told CBS News.
In a co-bylined article for The Guardian newspaper in May about the Saudi crown prince's diplomatic visit to the UK, Khashoggi said bin Salman had adopted a new form of extremism.
Saudi Arabia, naturally, has denied any involvement.