The Foreign Secretary said Saudi Arabia's official claim that the journalist died in a fight at the Gulf kingdom's consulate in Istanbul was "not credible".
The Saudi journalist can be seen holding hands with Turkish fiancee Hatice Cengiz, as they visit the local marriage office and enter their apartment block in the hours leading up to his fatal visit to the consulate.
He said the Saudis did not know how Khashoggi had been killed.
The Turkish and Saudi versions of Khashoggi's slaying - neither of which is on the record from the officials' governments - do not match.
Turkish President Recep Tayyip Erdogan has vowed to reveal more details about the police investigation into Khashoggi's alleged murder. The Russian Direct Investment Fund is leading a big delegation of executives to the prince's investment forum this week, even as western executives and officials are staying away over the Khashoggi case.
"Saudi Arabia took an important step by accepting the murder".
Dozens of government and business leaders have pulled out, but Crown Prince Mohammed bin Salman appeared at the event on Tuesday.
In it, they "condemn in the strongest possible terms" the killing of Khashoggi.
Pence, who spoke in Washington at an event hosted by The Washington Post, said whatever US response the president decides to make will keep in mind the importance of USA relations with Saudi Arabia - an alliance that he noted has been in existence since shortly after World War II.
Some top USA lawmakers turned their ire on the crown prince and said they believed he ordered the killing. He said administration officials have their "eyes wide open".
Kushner on Monday fended off criticism that the Trump administration was giving Saudi Arabia cover.
The photos back up Cengiz's account that the couple had bought an apartment and meant to marry as soon as they received the appropriate paperwork from the Saudi consulate. "What are you going to do?" Later, a Saudi official attributed the death to a chokehold.
When the Saudi team left the consulate, one of the team members got dressed in Khashoggi's clothing and left the consulate, pretending to be him. CNN described the images as law enforcement surveillance footage. They like each other I believe.
Back on Saturday, Freeland had noted that the Saudi explanations on the death of Khashoggi at its consulate in Istanbul lacked credibility and consistency.
Erdogan also cast Turkey in the role of global statesman, echoing calls for full Saudi accountability from Western allies whose relationships with the Turkish government have often been edgy in the past. But Erdogan revealed no plan to make public evidence that the Turks have. The number of arrests lines up with information gathered by Turkish intelligence on the case, Erdogan said. "Why has the body of someone, the killing of whom has been officially admitted, not been found?"
When asked about the Khashoggi murder last week, Putin at first pretended not to know what the questioner was asking about, then complained about what he called the lack of "a unified approach to these problems".
"Within the Saudi establishment there are a lot of people who do not like Russian Federation, who do not want MBS's close relations with Russian Federation". Why did these 15 people come here?
For now at least, Spain is not freezing its arms sales to Saudi Arabia.
But Khashoggi feared he was being lured into a trap and would likely be imprisoned or worse, two friends told NBC News. "We'll have to see". If [the Turkish findings] corroborate our findings that is good.
"We strongly demand and expect that Canadian exports are used in a way that fully respects human rights", Trudeau said in the legislature without identifying any company or export contract by name.
"We are owning the situation. They are deeply disturbing", the spokesman said.