When investigators spoke with Bryan Kohberger's classmates at Washington State University, where he had been pursuing his Ph.D. in criminology, a fellow teaching assistant said he "considered Kohberger a friend," and that he was "very intelligent but also selfish," according to a report released by Moscow police on Wednesday. The friend said Kohberger "would often mislead him when it came to their shared work and would have [him] complete work meant for Kohberger,” a report said.

The two discussed "Kohberger wanting a girlfriend on many occasions," the TA said, according to the report. Kohberger also "liked to discuss his area of study which was criminal decision making and burglary type crimes,” the report said.

The student also told investigators "about some injuries he witnessed on Kohberger's face and hands," and while he was "unsure of the date," he thought he had noticed the injuries "on two separate occasions in October and November of 2022,” the report said. One was a "large scratch on Kohberger's face which [the student] described as looking like the scratches from fingernails." The student "also saw wounds to Kohberger's knuckles on two separate occasions," and when he asked Kohberger what happened, he "replied he had been in a car accident,” the report said.

-ABC News’ Josh Margolin, Sasha Pezenik, Alyssa Pone, Matt Fuhrman and Connor Burton

Police reports released by Moscow police on Wednesday reveal how gruesome the crime scene was.

Some of the victims were bathed in so much blood that officers at first could not sort out what additional injuries there might be, and their faces were so badly damaged they were unrecognizable, according to the police report.

Blood was smeared on the walls and floors, a report said, and the coroner determined that “a lot of force was used by the suspect.”

Xana Kernodle had over 50 stab wounds, mostly defensive, officials said, noting that “an intense struggle had occurred.” Kernodle's fatal injuries were stab wounds to her lung and heart, according to the coroner's report.

According to the coroner's report, Ethan Chapin's "fatal injury was from a stab wound under his left clavicle which severed his subclavian vein and subclavian artery, and also his jugular vein was severed."

The bodies of Kaylee Goncalves and Maddie Mogen were together in a bed covered in a pink blanket that was "covered in blood," a report said. There was a "large pool of blood" near Goncalves' midsection and blood spatters on the walls. The bodies were pale and rigid and appeared to have lost a lot of blood, a report said.

"Madison appeared to be laying up against Kaylee. Madison had what appeared to be wounds to her forearm and hands,” a report said. “Madison had a gash under her right eye which appeared to go from the corner of her eye to her nose. Kaylee was unrecognizable as her facial structure was extremely damaged."

They both suffered stab wounds to the liver and lung, the coroner’s report said. Goncalves also had two brain bleeds, a stab behind her clavicle which cut the vein and artery and injuries "connected with asphyxiation and blunt force trauma."

-ABC News’ Josh Margolin, Sasha Pezenik, Alyssa Pone, Matt Fuhrman and Connor Burton

Despite Bryan Kohberger’s confession, police said they still do not have a motive.

James Fry, who was the Moscow police chief at the time of the murders, told ABC News after court that “new information could come out still.”

“There’s always cases that, you know, 10 years later, somebody says something,” he said.

Moscow police on Wednesday began unsealing documents in connection with the case. As documents are released, Fry said, “I think you will definitely find out some more stuff.”

Two roommates survived, including Dylan Mortensen, who told police she saw a man in a mask with “bushy eyebrows” in the house on the night of the murders.

Asked why Mortensen may have been spared, Fry said there are a lot of theories, including that Kohberger may have been exhausted from the stabbings or he could’ve felt he’d been in the house too long.

“I don’t know -- only he has that answer,” Fry said.

“He should be ashamed of what he did,” Fry said of Kohberger. “He destroyed lives, families, communities. Changed everybody that ever worked that case.”

“It’s not human what happened,” he said.

Moscow police told reporters after court that they do not know which victim was the specific target.

“There was a reason that this particular house was chosen. What that reason is, we don’t know,” police added.

Asked if there was evidence that Bryan Kohberger was following the victims’ social media, police said, “We’ve looked for a link and we have not found one.”

Police said they do not have a motive.

Moscow police said they will release all police reports from the investigation.

Asked by reporters why prosecutors did not ask that Kohberger provide more answers as a part of the plea deal, prosecutor Bill Thompson responded, “The law does not give the court, or us, the power to require specific factual allocution.”

“We could have said, ‘Well, in order for us to move forward we want a factual allocution,’” Thompson said. “But I have to be perfectly candid -- I don't believe that there is anything that would come out of his mouth that would be the truth.”

Through a statement read in court by friend Emily Alandt, one of the surviving roommates, Bethany Funke, said she's still scared to go out in public but forces herself to do so because she knows her friends would want her to live her life to the fullest.

Funke recounted her memories of her friends at their off-campus home.

"Our house was not just a house, it was a home,” Funke said.

She said Xana Kerndole was the life of the party and “kindest and funniest person,” and that Ethan Chapin and Kerndole “were absolute soulmates."

Kaylee Goncalves “had the most beautiful, radiant smile” and could have ruled the world, she said.

Maddie Mogen, Funke’s big sister in their sorority, was the “older sister I would’ve always wanted. There was no one I looked up to or admired more than Maddie.”

“I wish more than anything I could hug them one last time,” she said.

“I still tell them every night I will keep living for them,” she said.