State Prisons Incarceration
Pelican Bay State Prison. Photo credit: Jelson25, via Wikimedia Commons

An inmate convicted in San Diego was found dead Thursday at a Northern California prison, and his cellmate is suspected of killing him, authorities reported.

Martin Aguilar, 27, was pronounced dead in his cell at Pelican Bay State Prison shortly before 9:30 a.m., according to the California Department of Corrections and Rehabilitation.

Aguilar’s cellmate, Daniel Haro, 37, is under investigation in the suspected homicide, according to CDCR officials.

Aguilar was sentenced in San Diego County in April 2015 to serve eight years.

His convictions were for assault with a deadly weapon and an enhancement for a street-gang act in commission of a serious felony; possession of a controlled substance for sale; and assault likely to produce great bodily injury of a peace officer/firefighter.

While incarcerated, Aguilar also was sentenced on charges of battery on a non-prisoner and resisting an officer with threats of violence, both second-strike in-prison offenses.

Haro was sent to the Crescent City prison from San Diego County in April 2014 to serve life with the possibility of parole for first-degree murder. He had an additional consecutive 18-year sentence for attempted second-degree murder.

The Pelican Bay State Prison Investigative Services Unit is probing Aguilar’s death.