Bryan Kohberger called his mother several times after he killed four college students in Idaho, according to a digital forensics expert.

Heather Barnhart, who led the team that investigated Kohberger’s phone and hard drive, told People magazine that the former criminology student contacted his mother at 6:13 a.m. the morning of the killings.

Kohberger called his father at 6:14 a.m. after his mother didn’t answer.

Barnhart said Kohberger had saved his parents in his phone as “Mother” and “Father,” and would often call his father if he couldn’t reach his mother.

Bryan Kohberger’s three-hour conversation

“He would go back and forth texting: ‘Father, why did mother not respond? Why is she not answering the phone?” Barnhart told the publication.

Kohberger’s mother eventually answered the morning of the killings, and they spoke for 36 minutes, phone records show. They talked again at 8:03 a.m. for an additional 54 minutes.

They spoke several times that day, totaling over three hours, Barnhart said, and he often called his mother as early as 4 a.m. She also noted his phone had no texts with friends or anyone outside his family.

“There was a group chat, but it was all benign conversations,” Barnhart said.

All this information was taken from the Samsung Galaxy phone Kohberger owned around the time he moved to Washington from Pennsylvania.

Bryan Kohberger likely at victims’ homes before killings

The lead prosecutor handling the Kohberger case said he believes he was likely in the home of his victims before the murders in 2022.

Latah County prosecutor Bill Thompson said Kohberger’s movements and apparent familiarity with the home led to that belief: “The layout of the house is unique. It’s a little bit confusing.”

Kohberger had entered the home shared by the students through a sliding glass door in the kitchen on the second floor in the back of the house.

Thompson acknowledged Kohberger’s cellphone records showed that he was “stalking that neighborhood” and was there more than 20 times before the killings.

Bryan Kohberger reportedly miserable in prison

Nearly two weeks into serving his life sentence, Kohberger is reportedly miserable and being taunted by fellow inmates.

NewsNation learned Kohberger’s fellow offenders were taking turns shouting through the air ducts all day and all night to keep him from sleeping or even hearing himself think during the day.

“It’s really a prison within a prison,” said Chris McDonough, director of the Cold Case Foundation and a retired homicide detective.

Kohberger accepted a plea deal weeks before he was set to go to trial for the deaths of Kaylee Goncalves, Madison Mogen, Xana Kernodle and Ethan Chapin.

The college students were fatally stabbed inside their off-campus apartment in Moscow, Idaho, on Nov. 13, 2022.