Three cars were involved in a Buchanan County crash Wednesday afternoon.  The Highway Patrol reports Adam Hunt, 27, of Platte City, lost control while merging onto southbound 1-29 in St. Joseph.  He then travelled into the driving line and hit the vehicle driven by Elizabeth Heena, 33, of Chillicothe.  A third vehicle driven by Bennie Duckalew, 69, of Stanberry, attempted to avoid the accident, but struck Hunt’s vehicle.  Duckalew’s passenger, Debrah Buckalew, 61, was transported to Heartland Regional Medical Center with minor injuries.  Nobody else was harmed.