He entered the consulate to sort out documents for his marriage to his Turkish fiancée, Hatice Cengiz. Ankara maintains that there is strong proof that the killing of the Saudi journalist at the Saudi consulate on October 2 came as a result of a pre-planned operation by a squad of hitmen rather than a spontaneous fist-fight incident, as claimed by Riyadh.
Rogue killers or state murder?
"We are calling the entire world to put the necessary pressure, worldwide pressure, on the Saudi government to find his remains, to be able to bury him, even before finding those who are responsible, before this issue is covered up", Faith Oke, executive director of the Turkey-Arab Media Association, said Thursday. Turkey wants the suspects to be extradited.
President Recep Tayyip Erdogan spoke to Saudi King Salman last week, and the two agreed to continue co-operating in the investigation.
Saudi Arabia said they will face justice in the kingdom. The Turks added that the Saudi prosecutor also said no statement had been made by Saudi authorities about the existence of the purported local cooperator.
"It'll take us probably a handful more weeks before we have enough evidence to actually put those sanctions in place, but I think we'll be able to get there", he said on Thursday, adding that President Donald Trump had vowed accountability for all involved in the "heinous crime".
USA activists have launched a petition, calling for a section of road near the Saudi embassy in Washington to be renamed Jamal Khashoggi Way.
He said France was not "dependent on our economic relations with Saudi Arabia" and the country would impose sanctions, but no details were given.
"We don't know where the body is", he said.
Earlier, the USA called for a swift cessation of hostilities in Yemen, where a Saudi-led coalition has been fighting local Houthi rebels.