Turkey said it believed a hit squad of Saudi nationals had travelled to Istanbul with the sole objective of killing Khashoggi, a former member of the Saudi elite who became critical of the current government's administration in his country.
President Trump has been briefed by CIA Director Gina Haspel on the latest in the USA investigation into how Washington Post columnist Jamal Khashoggi was killed in the Saudi consulate in Istanbul, Turkey.
"Jamal's family needs a place to be together where they feel safe to mourn their beloved one", said Randa Slim, director of conflict resolution at the Washington-based Middle East Institute, who knew the slain journalist personally. On Thursday, officials changed the kingdom's account again, saying the murder appears to have been premeditated.
Saudi Crown Prince Mohammed, the kingdom's de facto ruler, denounced the "repulsive" murder this week.
"Failure of any one nation to adhere to global norms and the rule of law undermines regional stability at a time when it is needed most", Mattis said.
Germany has said it will not approve further arms exports to Riyadh until the truth about the journalist's death is known, urging other European nations to follow suit.
How Western allies deal with Riyadh will hinge on the extent to which they believe responsibility for Khashoggi's death lies directly with Prince Mohammed and the Saudi authorities.
Twins to hire Rocco Baldelli as manager
Baldelli was promoted to major league field coordinator last season after three years as Tampa Bay's first base coach. He spent six seasons with the Rays and one with the Boston Red Sox .
But speaking to reporters at a high-level forum in Bahrain, Mr al Jubeir said: "On the issue of extradition, the individuals are Saudi nationals".
Hatice Cengiz, a Turkish national, made the comments in an emotional interview with broadcaster Haberturk on Friday, her first TV appearance since Khashoggi's killing inside the kingdom's consulate in Istanbul more than three weeks sgo. "That's how I understood it", she said.
Saudi Foreign Minister Adel al-Jubeir, who spoke after Mattis at the conference, accused media of "hysteria" and said they are rushing to judgment in the Khashoggi case.
After a fortnight of denials, Saudi authorities admitted Saturday that Khashoggi, a Washington Post columnist and prominent critic of powerful Crown Prince Mohammed bin Salman, was killed after entering the consulate in Turkey on October 2.
Khashoggi, a Washington Post columnist and a U.S. resident, was killed after entering the consulate to obtain a document that would allow him to remarry.
Cengiz also received a phone call from U.S. Secretary of State Secretary of State Mike Pompeo, and recalled asking whether he had any news that would make her happy.
During the vigil, a friend of Khashoggi and advisor to Turkish President Recep Tayyip Erdogan, Yasin Aktay, said that "no one can sweep this affair under the rug".