Meanwhile, US President Donald Trump, who had threatened of punitive action against Saudis over the journalist's death, has now said that what happened was "unacceptable" but Saudi Arabia was a 'great ally, ' reported BBC.
"The reporting that Jared Kushner may have, with USA intelligence, delivered a hit list, an enemies list, to the crown prince, to MBS in Saudi Arabia, and that the prince then may have acted on that and one of the people he took action against was Mr. Khashoggi", Castro said.
"I think we're getting close to solving a very big problem", Trump said, adding that he found the Saudi explanation credible that Khashoggi died after an altercation.
He also said he thought third parties were involved in the death.
Khashoggi's death showed 'just how unsafe it is to have people acting with a sense that they have impunity in their relationship with United States, ' he said.
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Khashoggi has not been seen since he entered the Saudi embassy on October 2.
'We have heard the same excuses time and again from Saudi Arabia on Yemen, and now on Khashoggi: when disgraceful atrocities are committed, they call them unintended mistakes, and the world does nothing, ' she said.
The announcements came in a flurry of statements carried by the state-run Saudi Press Agency early Saturday morning.
On the Republican side, senator Lindsey Graham, who has been critical of Saudi Arabia in the past, said he doubted the Saudi explanation for Mr Khashoggi's death.
The decision to appoint MbS to head the restructuring process came after King Salman issued a decree firing the agency's vice president, Ahmed bin Hassan bin Mohammed Asiri.
Authorities said 18 Saudi suspects were in custody for his killing and intelligence officials had been fired.
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Turkish pro-government newspaper Yeni Safak has published what it said were details from the audio, including that his torturers severed Khashoggi's fingers during an interrogation and later beheaded and dismembered him.
"If Khashoggi was fighting inside the Saudi consulate in Istanbul, he was fighting for his life with people sent to capture or kill him", said Schiff, the ranking member of the House intelligence committee.
Just two years ago, Congress passed legislation allowing Saudi Arabia to be sued for its involvement in the September 11 attacks.
Saudi Arabia's statement said investigators worked with Turkish officials to determine what happened.
The White House issued a statement in response to the Saudi state media report, saying, "We will continue to closely follow the global investigations into this tragic incident and advocate for justice that is timely, transparent, and in accordance with all due process".
Turkish police searched a forest on Istanbul's outskirts and a city near the Sea of Marmara for Khashoggi's remains, two senior Turkish officials told Reuters.
And will the US government believe this explanation of the chain of events, which raises more questions and looks like an attempt to separate the Saudi royals from this crime?
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