Deaths in Custody
Died in prison

John Sullivan

66 years old · died March 10, 2021 · San Quentin State Prison, Marin County, California

John Sullivan, 66, died on March 10, 2021, in his cell at San Quentin State Prison in Marin County, California, where he was held. The California Department of Corrections and Rehabilitation said another incarcerated man killed him, and it described the death as a homicide. The prison and the Marin County coroner's office are investigating, and the manner of the killing and any motive have not been released.

Cause of death, as reported: Killed by another person in custody. The California Department of Corrections and Rehabilitation says another incarcerated man killed him, and his cellmate was identified as the suspect.

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 (2)