COALINGA – Pleasant Valley State Prison (PVSP) officials are investigating the death of Richard Derderian as a homicide. At 10:43 a.m. on Friday, March 10, 2023, an officer found Derderian lying unresponsive in a recreation yard with what appeared to be injuries.
An inmate-manufactured weapon was recovered at the scene. Staff quickly initiated life-saving measures and summoned emergency services to transport him to an on-site medical facility for treatment, where he was pronounced deceased at 11:13 a.m.