An autopsy revealed that Charles Mould, a 74-year-old from Bennington who died last week at Southern State Correctional Facility in Springfield, died of natural causes, according to Vermont State Police. 

Department of Corrections staff found Mould in his cell early in the morning on Nov. 30, according to a state police press release, and he was pronounced dead at the prison. 

Mould was held in the infirmary unit at the time of his death. Rachel Feldman, a corrections spokesperson, said she could not share why he had been under medical care.

Mould had been incarcerated since 2008, serving a 40 years-to-life sentence for convictions including repeated aggravated sexual assault, aggravated sexual assault on a child under 10 years old and lewd and lascivious conduct with a child, according to the release from state police. 

Six people have died at the Springfield facility this year. 

—Ethan Weinstein