A 25-year-old man has been identified as the victim in a fatal single-vehicle crash near Healdsburg last Thursday afternoon. Samuel Williams was driving his truck in the right lane of southbound 101 north of Westside Road when he drifted off the road. He went down an embankment and overturned and was pronounced dead at the scene. Williams was the only person in the vehicle and was not speeding at the time. CHP is still investigating the cause.