It is reported by CNN. Riyadh is now seeking the death penalty for five members of the hit squad in a move that appeared to be aimed at appeasing worldwide outrage over the killing and distancing the killers and their operation from the crown prince.
Secretary of Defence Jim Mattis said the question of holding the killers responsible and the strategic importance of the US-Saudi relationship were separate issues.
Saudi Arabia has said that 21 people are in custody and vowed to keep probing the killing of Khashoggi, who was killed and dismembered after visiting the kingdom's Istanbul consulate to handle paperwork for his planned wedding.
President Donald Trump has also denied United States media reports that the Central Intelligence Agency believes such an operation would have needed the approval of Prince Mohammed, known as MBS.
The crown prince's tour in the region is his first trip overseas since the killing of Khashoggi in the Saudi Consulate in Istanbul on October 2, which has battered the crown prince's "reformist" image overseas.
After weeks of saying he had left the consulate alive, the Saudi administration later admitted he was killed there, blaming his death on a group of rogue Saudi operatives.
Putin and Saudi crown prince are best of buds at G20 summit
Meanwhile, when asked about the Khashoggi killing, the MI6 spy chief said yesterday that it was "an appalling and shocking attack".
It became known that more than 400 messages, the journalist called the crown Prince "the beast" and even compared it with Pacman: "the more victims it devours, the more he wants".
They said the "whole world is certain that he ordered a awful crime against the journalist Jamal Khashoggi".
Abdulaziz said that their, and the Saudi government's, greatest weapon was Twitter.