A horse accident has resulted in the death of a Connecticut woman.  New York State Police from the Dover Plains barracks responded to a family farm on Byrds Hill Road in Dover on Monday morning for a report of a female fallen off a horse.  Investigators determined that the horse reared for an unknown reason, and fell on top of the rider.  23-year old Samantha Calzone of Greenwich was pronounced dead at the scene.  Northern Dutchess Paramedics and the Dutchess County Medical Examiner’s Office also responded to the scene.