Erica Marie Bair, 47, and Steven Douglas Buehler, 53, killed in collision on Riego Road in Sutter County, California

The fatal collision occurred at 4:23 p.m. on Riego Road east of Highway 99. Bair was reportedly traveling east when her vehicle drifted onto the right shoulder of the road, swerved back into the westbound lane, then again back to the road shoulder before veering back into the westbound lane and into the path of a truck.