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Bryan Kohberger, who was convicted in the 2022 slayings of four University of Idaho students in an off-campus home invasion, has repeatedly complained of harassment and threats from fellow prisoners while in jail. The 30-year-old, a former criminology Ph.D. student, was sentenced to life without parole in January and is now being held at Idaho’s Maximum Security Institution.

In a series of notes sent to prison officials from inside the facility and obtained by PEOPLE, Kohberger asked for a transfer to a different wing of the facility, stating that he was being harassed and threatened by other prisoners. Kohberger, who was placed in J Block (home to death row prisoners and others), said in documents first obtained by People that he has experienced “minute-by-minute verbal threats” from other prisoners since his arrival at the facility. He went on to detail specific threats, such as one prisoner saying, “I’ll b— f— you,” and another adding, “The only a– we’ll be eating is Kohberger’s.”

The prisoner threats reportedly started just two days after Kohberger arrived at J Block. Six days after being placed there, Kohberger filed another handwritten note to prison officials, asking for an immediate transfer to B Block, a “quieter and safer” wing. “Tier 2 of J Block is an environment that I wish to transfer from if possible,” he wrote. “I request transfer to B Block immediately. I wish to speak with you soon.”

Kohberger added in the notes that he has never engaged in typical prisoner offenses such as “flooding” or “striking.” Flooding is a term often used to describe when a prisoner clogs toilets and sinks in order to flood a facility, and striking often means not working or engaging in fights. Kohberger said he believed he was being “targeted unfairly” in his current housing. Guards who overheard the verbal threats verified they took place and included vulgar words directed toward Kohberger, although one officer said he couldn’t remember what the prisoner had said.

So far, Idaho state prison officials have not said if he will be moved from J Block. His housing placement still shows he is in J Block, as of this week. The Idaho Department of Correction has declined to comment on the matter.

The hostility has not just been Kohberger’s experience since he was convicted and sentenced. A court filing during his trial noted that during his time at the county jail, Kohberger was mocked on multiple occasions, including by another prisoner during a video chat with Kohberger’s mother. Another inmate was recorded saying Kohberger was a “f—ing weirdo.” He was later questioned by the county sheriff and stated he would have physically attacked Kohberger if it “didn’t put me in the penitentiary.”

Court filings in Kohberger’s trial offer a look at how his behavior has been perceived. The filings noted Kohberger had a “social awkwardness” and described him in “isolation” with a “piercing stare.” It also noted his “social awareness of others was extremely low.” Multiple consultants noted it wouldn’t be surprising if Kohberger were targeted by other prisoners. “High-profile offenders nearly always draw hostility,” one prison consultant wrote. “For Kohberger, his personality and notoriety put an even bigger target on his back.”

Kohberger’s appearance has notably changed as well since his arrest in November 2022 and trial in January 2023, with multiple reports indicating he has lost weight in the past two and a half years. Kohberger is in Idaho’s most secure facility, which is also home to some of the state’s most notorious criminals. That includes people like Chad Daybell, who is on death row for the murders of his two late wives, Tom and Gwen Thibodeau, in Twin Falls, Idaho, in 2018.

Kohberger is not the first high-profile prisoner to be harassed or killed by other inmates, with experts warning he could end up a similar fate to Jeffrey Dahmer, the former serial killer who was in prison for 14 years before being murdered by another inmate in 1994. “It’s always been a concern” for the families of high-profile killers, former federal law enforcement officer Grant Baldwin, the director of the University of Washington Criminal Justice Club, previously told PEOPLE. “Once that person is in prison, there’s no longer protection for them, there’s no more camera flashing, no more media.”

In the meantime, Kohberger remains under 24/7 supervision in the J Block unit of the Idaho Maximum Security Institution. Whether he will be transferred out of that block or not remains to be seen. In the notes he filed with the prison, Kohberger was clear about the threats and punishments he did not commit and the harassment he was experiencing in his current placement. His notes serve as an indicator of the potential risk facing other high-profile offenders behind bars. Kohberger was the subject of global attention, as were the brutal murders he was convicted of committing. The notoriety he faces and his awkward behavior, as described in his trial and by experts on inmate harassment, has made Kohberger a marked man in prison.