# Inmate violence at California State Prison-Sacramento

> Developing situation record from CLSTR: https://clstr.news/situations/inmate-violence-at-california-state-prison-sacramento
> Updated: 2026-10-27T23:43:45.000Z. Sources: 2. Developments: 2.

Two separate fatal incidents involving inmate attacks have occurred at California State Prison-Sacramento.

In the first incident, 47-year-old Mario Ortega was killed during an alleged attack by fellow inmate Shunki E. Fleming. The attack occurred while correctional officials were escorting the men in a golf cart. Fleming allegedly manipulated his way out of hand restraints and used an improvised weapon to attack Ortega before guards intervened.

In a subsequent incident, 39-year-old Carlos Montenegro was killed during an attack in a housing unit's upper tier. Inmates Justin Castro and Luis Mendoza allegedly ignored verbal commands from guards, prompting staff to fire five less-lethal 40mm rounds to stop the assault. Two improvised weapons were recovered at the scene. Both suspects have been placed in restricted housing, and investigations by the Sacramento County District Attorney’s Office and the Office of the Inspector General are ongoing.

## Timeline

### 2026-10-27: Two inmates held in fatal attack at California State Prison, Sacramento

Two inmates are in custody after a fatal attack on a fellow inmate at California State Prison, Sacramento, involving improvised weapons and the use of less-lethal rounds by guards.

2 sources. https://clstr.news/cluster/two-inmates-held-in-fatal-attack-at-california-state-prison-sacramento

### 2026-10-07: Inmate killed in alleged stabbing at California State Prison-Sacramento

An inmate was killed during an alleged attack by a fellow prisoner at California State Prison-Sacramento after the assailant escaped from hand restraints.

2 sources. https://clstr.news/cluster/inmate-killed-in-alleged-stabbing-at-california-state-prison-sacramento

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Cite as: Inmate violence at California State Prison-Sacramento. CLSTR, https://clstr.news/situations/inmate-violence-at-california-state-prison-sacramento
