A man from Rockville was killed Saturday in a car accident on the Clara Barton Parkway, police said. (iStock / iStock) By Martin Weil and Clarence Williamsl Dec. 1 at 7:24 pm A man was killed Saturday morning in a car accident on Clara Barton Road in the Bethesda neighborhood of Montgomery County, US police said. Police identified the victim as Sachin B Narasinghe P Dewage, 21, of Rockville. They stated that two other people had been taken to the hospital with life-threatening injuries. A head-on collision occurred around 4 am near Lock 5 of the C & O Canal, police said. It was apparently in the incoming hallways. .