Transcript for 'Zero question' that Saudi crown prince ordered journalist killing: Corker

remarkable scene playing out. A small group of senators meeting with the head of the CIA behind closed doors. When they emerged, they were fueling. They were briefed on the death of Jamal khashoggi. One senator saying there was no smoking gun, but a smoking saw. Here's Martha Raddatz. Reporter: It took CIA director Gina Haspel only one hour to lay out the evidence. And senators at the closed door briefing, just minutes, to offer jaw-dropping condemnation of Saudi's crown prince Mohammed bin Salman. I have zero question in my mind that the crown prince mbs ordered the killing. If he was in front of a jury, he would be convicted in 30 minutes. Guilty. Reporter: Jamal khashoggi, last seen walking into the Saudi consulate in istanbul. The CIA has determined a hit squad of Saudi operatives killed him there. One of them reportedly packing a bone saw. There's not a smoking gun. There's a smoking saw. You have to be willfully blind not to come to the conclusion that this was orchestrated and organized by people under the command of mbs. Reporter: The crown prince, last seen beaming with Vladimir Putin at the g-20. President trump in the background. The president has the same information that senators got today, but he has wavered. I don't know. I don't know. But whether he did or whether he didn't, he denies it vehemently. Martha, president trump has made it clear up until this point, he supports the crown prince. What now? The senators are really divided on this. Do they stop arms sales, more sanctions? One senator saying somebody should be punished. But how do you separate the crown prince from the country?

This transcript has been automatically generated and may not be 100% accurate.