Two roommates survived the murders in Moscow, Idaho. And one of them told police she saw a masked man in black clothes walking past her in the house on the night of the murders.

The witness account was taken the day the bodies were found. And it did not go public until January 5 with the release of the 18-page Probable Cause Affidavit. 

The court documents reveal how police identified the prime suspect. He is 28-year-old Bryan Kohberger, a criminology Ph.D. student at Washington State University.

The 4 University of Idaho students killed were Ethan Chapin, 20; Madison Mogen, 21; Xana Kernodle, 20, and Kaylee Goncalves, 21.

The time of the murders was pinpointed by events in the murder house that took place between 4 a.m. and 4:25 am.

According to the filing, Xana Kernodle received a DoorDash food order to the house at about 4 a.m. And at 4:12 Kernodle was on TikTok.

The killer was a “masked man”

Also, at approximately 4 a.m. one of the surviving roommates woke up. She said she heard what sounded like Kaylee Goncalves playing with her dog on the third floor.

The roommate said that shortly afterward "she heard who she thought was Goncalves say something to the effect of 'there's someone here,'" the documents claim. But since Kernodle was on her phone on TikTok it could have been her voice.

According to the documents the roommate "looked out of her bedroom but did not see anything when she heard the comment about someone being in the house.” And "then said she heard a male voice say something to the effect of 'it's ok, I'm going to help you.'" 

 "She opened her door a second time when she heard what she thought was crying coming from Kernodle's room." And that's when she saw the masked man.

The roommate did not recognize the man. And she described him as 5-foot-10 or taller, and "not very muscular, but athletically built with bushy eyebrows," according to the documents.

She saw the man walk towards the back sliding glass door. She was "frozen" and in "shock. And after seeing him she locked herself in her room.

At about 4:17 a.m., a security camera less than 50 feet from Kernodle's room picked up sounds of a barking dog and "distorted audio of what sounded like voices, or a whimper followed by a loud thud," according to the documents.

This will be the last piece of evidence released officially since a new court order was issued.

"The order prohibits any communication by investigators, law enforcement personnel, attorneys, and agents of the prosecuting attorney or defense attorney concerning this case," Moscow police said.