Police in Braintree, Massachusetts, are investigating a fatal, single-vehicle crash.
The crash occurred in the 300 Block of Common Street on Sunday.
Initial investigation reveals the vehicle, operated by 70-year-old William Vandewalle of Braintree, crossed the double yellow line, rolled over, and crashed into a tree. A witness told police that the vehicle was traveling at a high rate of speed and crashed into a curb in its travel lane before crossing into the oncoming lane.
Vandewalle was transported to Boston Medical Center where he was pronounced dead. Police say he may have suffered a medical emergency before the crash occurred.