Police still aren't ready to call this a homicide. Instead saying the woman died under suspicious circumstances.
Police say they went to check on the home after family members asked them to check on her because she lives alone and that's when they found the woman dead inside around 11 a.m. Tuesday. She has not been identified.
Since then, investigators have been examining the place for any clues.
"We were able to gain entry into the residence and we found what appeared to be a violent type of crime scene the occurred inside the residence," said Sgt. Jeff Nicks from the Rohnert Park Department of Public Safety.
Police also noticed the victim's white Toyota Highlander missing. It has a California license plate of 5SGC869. Authorities are searching for that car. They urge you to call 911 if you see it.