REEDLEY, Calif. (KFSN) -- All four family members found murdered in Reedley since Saturday have now been identified.
Police found the body of 43-year-old Matthew Bonds Tuesday morning in a detached garage at his next-door neighbor's house.
His father, 61-year-old Darrell Bonds, was found buried in a shallow grave in the backyard of the home he shared with Matthew and the two other victims found there. They've previously been identified as Matthew's wife, 44-year-old Guadalupe Bonds, and his grandfather, 81-year-old Billy Bonds.
Authorities say all four died from "substantial violent injuries," but autopsies that began Wednesday are being conducted to confirm their causes of death.
A 17-year-old boy who lived at the home where Matthew was found dead has been arrested on four counts of homicide.
RELATED: 17-year-old, 2 adults arrested after 4 found dead in Reedley neighborhood, police say
The teen's mother, 34-year-old Brynn Curtis, and her boyfriend, 21-year-old Rafael Gonzalez, were arrested on charges of accessory after the fact. They have both been released from jail on bond.
Chief Joe Garza believes that the 17-year-old suspect had help beyond his mother and her boyfriend. He pledged during a news conference Wednesday to continue searching for answers and get justice for the murdered family.
Detectives believe the motive involved items stolen from a safe at the Bonds' home. Chief Garza says some of Billy Bonds' belongings were found at the suspects' house.
Officers also served search warrants at a Parlier home and another house in Selma, where they impounded multiple vehicles they believed were connected to the case.
Stay with ABC30 for the latest details on this developing story.
Full Wednesday, Jan. 10 News Conference with Reedley Police Chief Joe Garza: