The airplane collided with mountainous terrain at about 1622 Pacific time while being operated as a public-use positioning flight. The commercial pilot and passenger were killed, and the airplane was destroyed. Visual conditions prevailed. Initial radar data indicates the airplane roughly followed a highway toward its destination. The last radar return occurred at 1622, at 2400 feet msl, in the vicinity of the accident site. The terrain elevation in the vicinity of the wreckage is approximately 1500 feet msl.