President Trump said he wanted answers on the issue

The president said the truth would come out “by the end of the week”.
He rejected suggestions he was trying to provide cover for Saudi Arabia: “No, not at all, I just want to find out what’s happening.”
Over the past few days, Mr Trump has raised the possibility of “rogue killers” being behind the journalist’s disappearance. And he has cautioned against rushing to blame Saudi leaders, telling the Associated Press news agency that they were being treated as “guilty until proven innocent”.
What is reported to be on the recording?
The existence of audio evidence that Mr Khashoggi – a critic of Saudi leaders – was murdered was revealed by Turkish investigators early on in their inquiries.
Reports in Turkish media give gruesome details of what are said to be his final minutes, including screams.
A Turkish newspaper says the consul himself, Mohammed al-Otaibi, can be heard in the audio recording of Mr Khashoggi’s death.
Yeni Safak, which is close to the government, quotes him as telling alleged Saudi agents sent to Istanbul: “Do this outside. You’re going to get me in trouble.”
The New York Times reports that four of the 15 agents have links to Crown Prince Mohammed, while another is a senior figure in the country’s interior ministry.
Mr Otaibi flew back to Riyadh on Tuesday.