The Highway Patrol continues to investigate a fatal accident that occurred yesterday afternoon near Smithville.  The one-vehicle crash took place on Apple Creek Road, north of Smucker Road.  According to the patrol, 36-year old Levi Everson, of Barberton, was driving a cement mixer truck when witnesses say he went left of center and then slowly drove off the right side roadway, where the truck overturned onto its side.  Emerson, who was not wearing a seatbelt, was killed int he crash.  It is the sixth fatal accident on Wayne County roadways so far this year.