Brian J. Diguez Obituary-Death News; Brian J. Diguez Killed At Folsom State Prison In Inmate Attack
Authorities are investigating the fatal attack of 34-year-old Brian J. Diguez, an inmate at Folsom State Prison in California, who was allegedly killed by two fellow inmates on the evening of Friday, July 18, 2025.
According to a statement released by the California Department of Corrections and Rehabilitation (CDCR), Diguez was in the facility’s dayroom shortly before 6:30 p.m. when he was violently assaulted by two inmates wielding makeshift weapons.
The correctional staff swiftly responded to the incident, intervening to halt the assault and begin life-saving measures for Diguez. Despite their immediate response, Diguez succumbed to his injuries.
He was transported to the prison infirmary, where medical staff from the Folsom Fire Department pronounced him dead at approximately 7:10 p.m. The two inmates accused of carrying out the attack have been identified as 48-year-old Boris Bonilla and 32-year-old Carlos J. Duran.
Both were immediately removed from the general population and placed in restricted housing while the investigation into the fatal incident proceeds. Prison officials have not released a possible motive for the deadly assault, and no other inmates or staff were reported injured during the altercation.
The CDCR, in coordination with the prison’s Investigative Services Unit, the Sacramento County District Attorney’s Office, and the Sacramento County Coroner’s Office, has launched a comprehensive investigation into the incident.
The circumstances surrounding the attack, including how the inmates obtained or crafted the weapons used, remain under active review. Brian J. Diguez was serving a 21-year sentence for voluntary manslaughter at the time of his death.
His criminal record and time in custody were marked by a serious offense, but the abrupt and violent end to his life within the prison system raises broader questions about inmate safety and violence in correctional facilities.
His alleged attackers, Bonilla and Duran, have distinctly different criminal backgrounds. Bonilla is serving a life sentence with the possibility of parole for first-degree murder—a charge that already marked him as a high-risk inmate.
Duran, in contrast, was serving a relatively short two-year sentence for a parole violation connected to vehicle theft, compounded by prior convictions related to the same offense.
The disparity in the nature and severity of the inmates’ sentences highlights the complex environment within California’s prison system, where individuals with vastly different backgrounds are often housed together, and tensions can escalate rapidly and with tragic consequences.
As the investigation continues, the CDCR has not commented on whether additional security measures will be implemented in the wake of the killing. Incidents like this underscore the persistent challenges correctional institutions face in preventing violence, controlling contraband, and ensuring the safety of those in custody.
Folsom State Prison, one of California’s most well-known correctional facilities, has a long history and houses inmates across various security levels. While the prison maintains standard procedures and surveillance, violent encounters among inmates—especially involving handmade weapons—remain an ongoing concern.
The death of Brian J. Diguez adds another grim chapter to the complex narrative of incarceration in America. Authorities are urging anyone with information relevant to the case to come forward as they work to determine what led to the fatal encounter and how such a deadly breach in security could occur within a controlled environment.
