West Richland police are investigating the death of a 22-year-old man found Tuesday night in a car at a West Richland gas station.
An autopsy Wednesday indicated no signs of violence surrounding the death of Travis Larsen, but Benton County Coroner John Hansens said they will need to wait for toxicology tests to rule on a cause of death.
Larsen reportedly was seen sitting in a car for an extended period of time at a gas station at Paradise Way and Bombing Range Road.
When someone went to check on him, police were told Larsen wasn't breathing and 911 was called, Hansens said.
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Larsen was taken by ambulance to the hospital. He was declared dead shortly after his arrival, Hansens said.
The autopsy was performed by Dr. Carl Wigren, a forensic pathologist from Seattle.