The Latest on the kidnapping of a Washington state woman (all times local):

12:05 p.m.

Authorities in Washington state aren't ruling out additional suspects in the case of a 69-year-old woman who was found dead two days after she was abducted for ransom.

But police in the city of Kennewick said Monday that they aren't looking for anyone in particular. Theresa Wiltse has been arrested on suspicion of kidnapping.

Police say the abduction wasn't random and the suspect was known to victim Sandra Harris and her husband. They say there's no danger to the public.

An autopsy is scheduled this week for Harris, whose body was found near a highway Sunday.

Police say the kidnapper used Harris' cellphone to call her husband at work Friday and demand an undisclosed amount of money. Authorities negotiated and agreed to meet up to pay the ransom.

It wasn't clear where the money is now.

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7:52 a.m.

Authorities say a 69-year-old woman reportedly abducted for ransom in Washington state has been found dead — two days after police agreed to pay the money and arrested someone they said was involved.

The Benton County Sheriff's Office says the body of Sandra Harris was found by a motorist midday Sunday along Coffin Road, 2 miles east of Interstate 82 in southeastern Washington. The sheriff's office said it's not clear how she died.

Kennewick police say Harris was kidnapped Friday from her Kennewick home. The kidnapper used Harris' cellphone to call the victim's husband at work and demanded an undisclosed amount of money.

Local and federal investigators negotiated with the kidnapper for several hours and ultimately paid the ransom Friday night.

Forty-nine-year old Theresa Wiltse of Connell, Washington, was arrested shortly afterward.