The release of the report Friday could prove a test for normally close relations between Washington and Riyadh. It comes the day after US President Joe Biden's first phone call with Saudi King Salman.
The Saudi government rejected the allegations, adding that it had taken "all possible measures within our legal system to ensure that these individuals were properly investigated, and to ensure that justice was served," the Foreign Ministry said in after the release of the report.
US Secretary of State Antony Blinken said on Friday the State Department will impose a "Khashoggi Ban," a set of restrictions on 76 Saudi individuals who are believed to be involved in the killing.
"Starting today, we will have a new global policy bearing his name to impose visa restrictions on those who engage in extraterritorial attacks on journalists or activists," Blinken said on Twitter.
But media reports suggest that the US will not impose sanctions on the crown prince.
The United States wants change but not a "rupture" in ties with Saudi Arabia, Blinken said.
"What we've done by the actions that we've taken is really not to rupture the relationship, but to recalibrate to be more in line with our interests and our values," he told reporters.
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What did the report say?
The document cites Mohammed bin Salman's "absolute power" over Saudi intelligence and security forces since 2017.
"The crown prince viewed Khashoggi as a threat to the Kingdom and broadly supported using violent measures if necessary to silence him," the report said.
The document concluded that a close adviser of the royal family, who publicly said that he did not make decisions without Mohammed bin Salman's approval, was affiliated with a Saudi delegation that arrived in Istanbul in October 2018.
The same delegation included seven members of Mohammed bin Salman's aides and guards, known as the Rapid Intervention Force (RIF), who only answered to the crown prince's orders and carried out "dissident suppression operations" in the kingdom, according to the report.
Why is the report important?
News media had reported that US intelligence agencies concluded in 2018 that the prince likely ordered the killing, although such a finding was never officially released until Friday.
Recognition of the involvement of the prince could cast a huge shadow over relations between the US and its most significant ally in the Arab world, Saudi Arabia. Relations between the two had flourished under Biden's predecessor, Donald Trump.
Prince Mohammed's critics — including a rights group founded by the slain journalist — want the US president to back up past tough rhetoric about Saudi Arabia. They want sanctions or other tough actions that would target and isolate the prince.
They fear Biden will simply opt for condemnation, avoiding a lasting standoff with Saudi Arabia, seen as a valuable strategic partner given its vast oil reserves and regional rivalry with Iran.
Jamal Khashoggi: A mysterious disappearance and death
Official Saudi statements on the fate of journalist Jamal Khashoggi have changed several times since he disappeared at the Istanbul consulate on October 2. DW traces the most important events in this intricate case.
Image: picture-alliance/dpa/J. Martin
Vanishes into thin air
October 2: Prominent journalist Jamal Khashoggi was last seen entering the Saudi consulate in Istanbul, where he had gone to obtain an official document for his upcoming marriage to his Turkish fiancee, Hatice Cengiz. He never emerged from the building, prompting Cengiz, who waited outside, to raise the alarm.
Image: Reuters TV
Confusion over whereabouts
October 3: Turkish and Saudi officials came up with conflicting reports on Khashoggi's whereabouts. Riyadh said the journalist had left the mission shortly after his work was done. But Turkish presidential spokesman Ibrahim Kalin said the journalist was still in the consulate.
Image: picture-alliance/AP Photo/V. Mayo
Murder claims
October 6: Turkish officials said they believed the journalist was likely killed inside the Saudi consulate. The Washington Post, for which Khashoggi wrote, cited unnamed sources to report that Turkish investigators believe a 15-member team "came from Saudi Arabia" to kill the man.
Image: picture-alliance/AP Photo/H. Jamali
Ankara seeks proof
October 8: Turkish President Recep Tayyip Erdogan called on Saudi Arabia to prove that Khashoggi left its consulate in Istanbul. Turkey also sought permission to search the mission premises. US President Donald Trump voiced concern about the journalist's disappearance.
Image: picture-alliance/AP Photo/T. Kovacs
'Davos in the Desert' hit
October 12: British billionaire Richard Branson halted talks over a $1 billion Saudi investment in his Virgin group's space ventures, citing Khashoggi's case. He also pulled out of an investment conference in Riyadh dubbed the "Davos in the Desert." His move was followed by Uber's Dara Khosrowshahi, JP Morgan's Jamie Dimon and a host of other business leaders.
Image: picture alliance/dpa
Search operation
October 15: Turkish investigators searched the Saudi consulate in Istanbul. The search lasted more than eight hours and investigators removed samples from the building, including soil from the consulate garden and a metal door, one official said.
Image: Reuters/M. Sezer
Death after fistfight
October 19: Saudi Arabia finally admitted that Khashoggi died at the consulate. The kingdom's public prosecutor said preliminary investigations showed the journalist was killed in a "fistfight." He added that 18 people had been detained. A Saudi Foreign Ministry official said the country is "investigating the regrettable and painful incident."
Image: Getty Images/C. McGrath
'Grave mistake'
October 21: Saudi Arabia provided yet another account of what happened to Khashoggi. The kingdom's foreign minister admitted the journalist was killed in a "rogue operation," calling it a "huge and grave mistake," but insisted that Saudi Crown Prince Mohammed bin Salman had not been aware of the murder. Riyadh said it had no idea where Khashoggi's body was.
Image: picture-alliance/AP Photo/C. Owen
Germany halts arms sales
October 21: German Chancellor Angela Merkel said Germany would put arms exports to Saudi Arabia on hold for the time being, given the unexplained circumstances of Khashoggi's death. Germany is the fourth largest exporter of weapons to Saudi Arabia after the United States, Britain and France.
Image: picture-alliance/dpa/S. Sauer
Strangled to death, dissolved in acid
October 31: The Turkish prosecutor concluded that Khashoggi was strangled to death soon after entering the consulate, and was then dismembered. Another Turkish official later claimed the body was dissolved in acid. Turkish President Erdogan said the order to murder the journalist came from "the highest levels" of Saudi Arabia's government.
Image: picture-alliance/AA/M. E. Yildirim
Grilled at the UN
November 5: Saudi Arabia told the United Nations it would prosecute those responsible for Khashoggi's murder. This came as the United States and dozens of other countries raised the journalist's death before the UN Human Rights Council and called for a transparent investigation.
Image: Getty Images/AFP/F. Coffrini
Fiancee in mourning
November 8: Khashoggi's fiancee, Hatice Cengiz, wrote on Twitter that she was "unable to express her sorrow" upon learning that the journalist's body was dissolved with chemicals. "Are these killers and those behind it human beings?" she tweeted.
Image: Reuters/Haberturk
Turkey shares audio recordings
November 10: Turkish President Recep Tayyip Erdogan reveals that officials from Saudi Arabia, the US, Germany, France and Britain have listened to audio recordings related to the killing of journalist Jamal Khashoggi at the Saudi consulate in Istanbul.
Image: picture-alliance/AP Photo/Presidential Press Service
Symbolic funeral prayers
November 16: A symbolic funeral prayer for Khashoggi is held in the courtyard of the Fatih Mosque in Istanbul. Yasin Aktay, advisor to President Erdogan, speaks at the service.
Image: Reuters/M. Sezer
Saudi-owned villas searched
November 26: Turkish forensic police bring the investigation to the Turkish province of Yalova, where sniffer dogs and drones search two Saudi-owned villas in the village Samanli.
Image: Reuters/O . Orsal
100 days since killing
January 10: Amnesty International Turkey members demonstrate outside the Saudi Arabia Consulate in Istanbul, marking 100 day since the killing of Jamal Khashoggi. One woman holds up a street sign which reads "Jamal Khashoggi Street". The organization has called for an international investigation into the case.
Image: Reuters/M. Sezer
Saudi murder trial begins
January 3: The Khashoggi trial begins in Saudi Arabia, where state prosecutors say they will seek the death sentence for five of the eleven suspects. A request for the gathered evidence has been send to Turkish authorities. A date for the second hearing has not yet been set.
Image: picture-alliance/abaca/Depo Photos
UN inquiry team in Turkey
January 28: Agnes Callamard, who is leading the UN probe into the handling of the Khashoggi case, arrives in Ankara where she meets with Turkish Foreign Minister Mevlut Cavusoglu. The human rights expect will stay in the country for the rest of the week to speak with prosecutors and others involved in the case.
