John Cisneros
John Cisneros, 49, died at California State Prison, Sacramento, on February 23, 2026. According to the California Department of Corrections and Rehabilitation, he was found unresponsive in his cell around 9:15 p.m. and was pronounced dead by ambulance personnel at 9:59 p.m. CDCR says it is investigating his death as a homicide and has placed his cellmate in restricted housing while that inquiry proceeds. The Sacramento County Coroner's Office says the cause and manner of death remain pending.
Cause of death, as reported: Killed by another person in custody. The California Department of Corrections and Rehabilitation says it is investigating his death as a homicide and has removed his cellmate from the cell, while the Sacramento County Coroner's Office says the cause and manner remain pending.
Reported by: California Department of Corrections and Rehabilitation (the agency that held him). The only account of how this person died comes from the agency that held him.
News reports (6)
- California State Prison, Sacramento Officials Investigating the Death of an Incarcerated Person as a Homicide - California Department of Corrections and Rehabilitation
- Man incarcerated at California State Prison Sacramento dies; homicide investigation underway
- Prison Inmate Death Being Investigated As Homicide
- California inmate convicted of rape allegedly killed by cellmate in prison
- California State Prison, Sacramento Officials Investigating the Death of an Incarcerated Person as a Homicide
- Cellmate detained after inmate convicted of sexual assault found dead at California prison