Human remains found near Riverside County tied to missing persons report, homicide investigation

An investigation is underway after human remains were discovered in a remote area near the Riverside County and San Diego County border on Saturday morning. 

Details surrounding the incident remain limited as the investigation got underway, but Riverside County Sheriff's Office officials told CBS LA that their Central Homicide Unit was dispatched to the unincorporated community of Warner Springs, near Highway 79 and Highway 371, upon learning of the discovery. 

"The identity of the deceased subject has not been confirmed and is pending positive identification from the San Diego County Medical Examiner's Office," RSO officials said.

Deputies with the San Diego Sheriff's Office also responded to the scene along with Riverside County deputies and personnel from the San Diego County Medical Examiner. 

In an updated news release, deputies said that the remains belonged to Francisco Torres, a 61-year-old San Diego County man who was reported missing by family members on May 12. 

"Based on the investigation and evidence gathered by homicide investigators, this case has been changed from a missing persons investigation to a homicide investigation," the release said. 

Investigators said that the suspect was identified as 66-year-old Derek Arnett, who died from an alleged self-inflicted gunshot wound following a standoff near Pechanga Resort Casino in Temecula on May 13.