"I talked about that with the Saudi authorities", he said, "and I just hope that it happens soon".
"UN member states must end their deafening silence on Saudi Arabia and do their duty of scrutinizing the cruelty in the kingdom in order to prevent further outrageous human rights violations in the country and in Yemen", Samah Hadid, Amnesty International's Middle East director of campaigns, said in a statement.
"I hated seeing what happened with the bus and the children cause that's pure - that's a horror show when you see a thing like that, you saw the bus", he said, stressing that "bother's not a strong enough" word to describe the disgust he felt watching the tragedy.
According to Turkey's pro-government Sabah daily, Saudi Arabia sent an 11-member "cover-up team" to Istanbul on 11 October, nine days after the Washington Post contributor vanished after entering the diplomatic compound to obtain paperwork for his marriage.
Ahead of the review, the United Nations rights office published a list of concerns about human rights in Saudi Arabia, including discrimination against women, continued use of the death penalty, and "extremely broad" definitions of terrorism that enable "the criminalization of some acts of peaceful expression".
Khashoggi's killing has provoked widespread outrage and sharp criticism from Washington, usually the staunchest of allies.
The body of Khashoggi, a former Washington Post columnist and critic of the Prince Mohammed, remains missing.
The president of Saudi's Human Rights Commission, Bandar al-Aiban, told the panel that King Salman had instructed prosecutors to investigate the killing and bring perpetrators to justice.
"Jamal was never a dissident", Salah Khashoggi said.
Reflecting on their father's career as a journalist, the brothers said their father was "like a rock and roll star" when they were out with him in Saudi Arabia.
Al-Waleed added that despite criticism from American lawmakers, he did not believe that the bond between the two countries would "break", Fox reported.
"There's a lot of ups and downs". They're trying to get as much information as they can out of anything, which is something that we're also doing. "It's confusing and hard". "And I have faith in that".
"It's not a normal situation, it's not a normal death at all".
On November 2, Khashoggi's fiancé Hatice Cengiz called on US President Donald Trump to help recover Khashoggi's body for a proper burial ceremony.