The Saudi Arabian lawyer later admitted that Khashoggi was killed in a prevented murder.
The Special Rapporteur makes no conclusions on the debt of the Saudi Crown Prince and King. Instead, Callamard says there is "credible evidence that provides further investigation by a proper authority" if "the threshold of criminal liability is met".
She continues to say that Khashoggi was "fully aware of the powers of the Crown Prince" and had expressed fear of what would happen to him if he returned to the kingdom.
CNN has come out to the Saudi government for an answer to Wednesday's report.
Riyadh claims that neither bin Salman nor King Salman knew the operation to target Khashoggi. However, US officials have said such a mission ̵
According to the report – quoting evidence from Turkish and other intelligence agencies – after entering the consulate, Khashoggi was injected with sedatives and then put his head in a plastic bag and smothered.
It quotes a sound recording from the inside of the consulate, where Khashoggi is heard to be told he will be in Saudi Arabia.
"We have to get back. There is an order from Interpol," a Saudi Arabia man tells the journalist who replies that "there is no case against me" and warns them that people are waiting for him outside the consulate.
The men instruct Khashoggi to write a text message to his son and argue over what to say before a voice says "Cut it card".
"There is a towel here. Should you give me drugs?" Khashoggi asks.
"We will stun you," replies a man.
A fight can then be heard, after which a man asks if Khashoggi has gone out.
"He raises his head."
"Press here, don't remove your hand, press it."
The Special Rapporteur found credible evidence pointing out that the crime scenes "have been thoroughly, even forensically cleaned" – suggesting that the Saudi investigation "was not conducted in good faith and that it could impede justice". 
Reports for Riyadh
While US President Donald Trump has resigned from taking a tough line against bin Salman, he wants to keep Riyadh's support for pushing Iran and flowing money for arms sales, other US politicians have tried to punish Saudis.
Washington has also relieved the Saudi rival Qatar, originally supporting Riyadh's attempt to block his fellow monarchy.