Benton County sheriff's deputies are investigating the death of a 38-year-old Finley man Sunday.
Robert V. Zimmerman was found dead in bed by his wife at his home on 2289 Private Road in Finley, said Deputy Joe Lusignan.
Zimmerman had no known or serious medical problems, but reported some chest pains last week, Lusignan said.
Detectives responded to the home but found nothing suspicious, Lusignan said.
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An autopsy was completed Monday by Dr. Carl Wigren, a forensic pathologist from Seattle.
No apparent cause of death was found during the autopsy, said Benton County Coroner John Hansens. Toxicology tests are pending.