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The convicted killer of four University of Idaho students is making headlines again — this time, from behind bars. Bryan Kohberger, the 30-year-old former Ph.D. criminology student who was found guilty in June, has been lodging a series of handwritten complaints claiming that he’s being threatened by other inmates at Idaho’s Maximum Security Institution (MSI) on a “minute-by-minute” basis, according to court documents obtained by PEOPLE.

In one of the notes Kohberger, who’s been held at the prison since his arrest, asked prison officials to transfer him out of J Block, a wing of the facility that houses high-profile inmates and the “highest-risk” prisoners in the state, including those on death row, and into the quieter B Block, PEOPLE has learned.

“In my current ad-seg setting, I’ve been subject to a continuous flow of verbal harassment. Tension is high and words are loud,” Kohberger, who is using prison slang to say he’s being held in “administrative segregation” or protective housing, wrote in one letter, continuing that he’s been subjected to “minute-by-minute” harassment.

The threats, Kohberger wrote, are “graphic and graphic threats of sexual assault in nature.” Kohberger says the verbal abuse began just two days after he’d been placed in J Block, and within a week he filed a complaint again when, he alleges, one inmate told him, “I’ll b— f— you,” and another said, “The only a– we’ll be eating is Kohberger’s.” Guards confirmed that they overheard the vulgarities being directed at Kohberger but that they did not remember the exact language, according to the filing.

“As I continue the SPI phase, I wish to discuss if I may be transferred to another ad-seg setting,” he wrote, People has learned. “Tier 2 of J Block is an environment that I wish to transfer from if possible. I request transfer to B Block immediately. I wish to speak with you soon.”

In his missive, Kohberger also insisted that he had not been flooding or “striking,” two common ways for inmates to file grievances and protest. Flooding is typically clogging sinks or toilets in an effort to cause water damage to cells or facilities. “Striking” could involve any number of actions from refusing work assignments, to violence, to other prohibited conduct.

State prison officials have not responded to PEOPLE’s requests to confirm whether Kohberger will be moved or not. Records indicate that as of Wednesday he was still in J Block.

The Rocky Road to Inmate

Kohberger’s first months in jail were no picnic. Reports from his earlier stint in jail noted that inmates mocked him frequently, even while he was on video calls with his mother. In one instance, a prisoner told Kohberger he was a “f—ing weirdo” and in another, said he’d have beaten him up in an earlier era when that may not have resulted in consequences, according to reports obtained by PEOPLE.

His “awkward demeanor,” detailed in court documents that noted a “piercing stare” and “social awkwardness” as the man entered and exited the courtroom on trial, have only made him more of a target in prison. Experts said that with his high-profile crime and personality, Kohberger was almost destined to encounter issues in prison. “High-profile offenders nearly always have a target on their back,” said one prison consultant PEOPLE spoke with. “In Kohberger’s case, his personality makes him stand out even more.”

Since his conviction, life has not been kind to him. Observers say that the former student has visibly lost weight over his more than two and a half years in jail and prison. Kohberger is in the state’s highest-security prison, where he’s surrounded by the state’s most notorious killers, including death-row inmate Chad Daybell. Inmates have compared Kohberger’s treatment to that of Jeffrey Dahmer, who spent years being harassed in prison before being murdered in 1994, and some experts fear that if his complaints aren’t heeded, Kohberger may be next.

He will likely be in J Block for the rest of his life. Kohberger was sentenced in July to life in prison without the possibility of parole and is not eligible for parole for 30 years, though officials at the Idaho Department of Corrections have not ruled out future movements in other ways. Officials have not been willing to discuss the details of Kohberger’s security status but have all but confirmed that he’s under 24-hour surveillance and strict controls, a common designation in cases where there are safety concerns.

But based on Kohberger’s filings, one thing is certain: While his notoriety has followed him into the prison, so has his reputation as an awkward man. And he will likely remain the target of others in prison as a result.