Mr Dufault was reported missing to the Selah Police Department by family on 11-04-2013 as family had not seen Mr Dufault for some time.
The autopsy did not readily identify a cause of death. The body is believed to have been in the water for at least a month. Drowning was ruled out as cause of death. Toxicology tests will be conducted in the hopes of determining a cause of death.
Investigators are attempting to identify those who would have last had contact with Mr Dufault. Anyone with information regarding this case is asked to call the Yakima County Sheriff's Office at 574-2500 or anonymous tips can be called into Crime Stoppers of Yakima at 248-9980 or 800-248-9980.