One of multiple corrections officers charged in connection with the fatal beating of an inmate at an upstate New York prison last year pleaded guilty to manslaughter Monday and agreed to serve 11 years in prison.

Former guard Caleb Blair had initially faced the most serious charges filed against the officers, including second-degree murder, in the death of 22-year-old Messiah Nantwi at the Mid-State Correctional Facility near Utica on March 1, 2025. Nantwi died of massive head trauma and other injuries, and Blair was one of two guards who prosecutors said inflicted head wounds.

Prosecutors said Nantwi suffered 69 separate body blows from guards who used their fists, boots and batons in a series of beatings.…