Lt. Pat Ashmore says a tow truck driven by 25-year-old John Arthur Harvey late Tuesday struck a Toyota Corolla driven by his 20-year-old brother, Westun Lee Harvey. The crash happened south of Hood River, a small town east of Portland.
Westun Harvey was critically injured in the crash, and his wife, 28-year-old Rosario Harvey, was killed.
Ashmore says it appears both drivers crossed the center line before the collision.
State troopers based in The Dalles are continuing the investigation.