CASA GRANDE, Ariz. -- Authorities have officially identified three members of a Pinal County family as those who died in a suspicious fire at their home.
The Casa Grande Dispatch reports that medical examiners used dental records to identify 51-year-old Dr. Joyce Bonenberger, her husband, Dennis, and son, Trevor.
Authorities are trying to determine the victims' cause of death and the cause of the fire that destroyed the Bonenbergers' home northeast of Casa Grande on Dec. 13.
Joyce Bonenberger and her son were found in two bedrooms, while Dennis Bonenberger was found in the home's garage.
Shortly after the fire, a hospital where Joyce Bonenberger worked identified the Bonenberger family as the victims of the fire, but authorities held off on making such a statement until the dental-records comparison was completed. ___
Information from: Casa Grande Dispatch.