Bryan Kohberger called his mom multiple times after killing four University of Idaho students with a knife in November 2022 – first when he got back to his apartment across the state line in Pullman, Washington, and later when he drove back to the scene after sunrise, according to a new report.

The 30-year-old’s own lawyers described him in court filings as socially awkward, and he was diagnosed with autism spectrum disorder as part of a failed bid to have the death penalty taken off the table if the case had gone to trial. According to the forensic analysis, he reportedly had no text with friends or anyone outside his family, other than a single, “benign” group chat.

Heather Barnhart, the senior director of forensic research at Cellebrite, a digital forensics firm that assists law enforcement around the country cracking cases, also revealed that Kohberger referred to his parents as “Mother” and “Father” in awkward text messages in a new interview with People.

Judge Steven Hippler handed down the maximum sentence possible under the terms of the plea deal – four consecutive sentences of life with no parole, plus another 10 years. He waived his right to appeal and to seek a reduced sentence.

Now he’s being housed in an individual cell at the Idaho Maximum Security Institution, where his fellow inmates are reportedly harassing him night and day.