FOLSOM – A murder investigation is underway at California State Prison, Sacramento, after an inmate died early Saturday morning, officials said.
Shortly before 4 a.m., staff responded to a cell occupied by Kyle Cooper and Rahshan Mackey after an alarm went off.
This is where the California Department of Corrections and Rehabilitation Cooper did not respond and said he had head trauma.
Cooper, 50, was taken to an outside hospital where he later died, officials said.
Mackey was then placed in restricted housing.
Cooper was arrested in 2015 after being sentenced to 37 years on three counts of second-degree robbery with the enhancement of using a firearm as a second striker. He was also convicted of possession of a firearm by a felon or addict as a second striker.
Mackey, 38, was arrested in 2021 after being sentenced in Alameda County to 23 years for voluntary manslaughter with an enhancement. He was then sentenced to more than two years in 2024 for assault with a deadly weapon.
