Khashoggi, a Saudi journalist that was a critic of MBS, was last seen at the Saudi consulate in Istanbul Oct. 2 where he was to receive papers ahead of his wedding.
There was no immediate reaction from Riyadh which was sent the 100-page report in advance - but the kingdom has regularly denied accusations that the prince was involved.
Agnes Callamard, the U.N. special rapporteur on extrajudicial executions, called for countries to widen sanctions to include the crown prince and his personal assets, until and unless he can prove he has no responsibility.
His body was dismembered and removed from the building, the Saudi prosecutor has said, and his remains have not been found.
“It is the conclusion of the Special Rapporteur that Mr. Khashoggi has been the victim of a deliberate, premeditated execution, an extrajudicial killing for which the state of Saudi Arabia is responsible under international human rights law,” Callamard said in her report based on a six-month investigation.
Callamard went to Turkey earlier this year with a team of forensic and legal experts and said she received evidence from Turkish authorities.
“There is credible evidence, warranting further investigation of high-level Saudi officials’ individual liability, including the Crown Prince’s”, she said.