Barbed wire fence with metal posts, set against an overcast sky.
Razor wire lines the perimeter fences at the Northwest State Correctional Facility in St. Albans Town on Friday, Feb. 4, 2022. Photo by Glenn Russell/VTDigger

An incarcerated South Burlington man who had been charged with attempted second-degree murder in the alleged assault of another man in custody late last year now is now facing a murder charge. 

Mbyayenge Mafuta, 22, is accused of beating Jeffrey Hall, 55, in a cell they shared at the Northwest State Correctional Facility in St. Albans around 2 p.m. on Dec. 22. Hall died months later, on March 10, from injuries sustained in the beating, according to authorities. 

Vermont State Police announced Tuesday they had recently received the final autopsy report from the stateโ€™s Chief Medical Examinerโ€™s Office in Burlington regarding Hallโ€™s death. The medical examiner, according to a press release, determined that the cause of Hallโ€™s death was blunt force trauma to his head and the manner of death was homicide.

As a result, police said, Mafuta was issued a citation on a second-degree murder charge in Hallโ€™s death. 

Mafuta is set to be arraigned on the charge Aug. 22 in Franklin County Superior criminal court in St. Albans, according to the release. He remains held without bail.

No additional information on the upgraded charge was immediately available Tuesday afternoon. More details are expected to be released when a police affidavit in support of the charge becomes public after Mafutaโ€™s arraignment. 

An affidavit of probable cause filed earlier this year in support of the attempted second-degree murder charge against Mafuta outlined his behavior in the days leading up to the alleged beating. 

Just days earlier, according to the affidavit, Mafuta was moved to a segregated unit at the prison after telling a guard that he was โ€œhearing voices and they would not stop.โ€ 

In addition, the affidavit stated, Mafuta reportedly had been โ€œscreaming and banging things around in his cell,โ€ and told a guard that he wanted to kill himself.

The next day, Dec. 20, according to the affidavit, Mafuta was returned to the general population after medical and mental health professionals at the prison reported he had no thoughts of self-harm or wanting to harm others. 

On Dec. 22, Mafuta beat Hall in the small cell the two men shared, leaving Hall with life-threatening injuries, according to the police affidavit.

VTDigger's criminal justice reporter.