From the Seattle Times:
The three firefighters killed in a wildfire near Twisp, Okanogan County, last week died from smoke inhalation and “thermal injuries,” or burns, Okanogan County Coroner Dave Rodriguez said Friday.
The firefighters were driving up a steep gravel road and crashed down a 40-foot embankment, where the fire consumed them. The manner of death was classified as accidental.
Those killed Aug. 19 were Richard Wheeler, 31, Andrew Zajac, 26, and Tom Zbyszewski, 20.
Rest in peace, brothers.