Polcie say the driver of the SUV, 31 year old Justin Miller of Warm Springs was northbound on Highway 97 when he turned onto Jefferson Street in front of a commercial truck.
The crash pushed the SUV back into the northbound lane where it was struck by a second commercial truck.
The SUV had two passengers. The driver and one of the passengers suffered non-life threatening injuries. They were wearing seat belts, but 56 year old Grant Smith of Warm Springs was not and he was critically injured.
Smith remains in critical condition at St. Charles in Bend.
The two truck drivers were not injured. They too were wearing safety belts.