A fatal accident in North Salem is under investigation by New York State Police.  Troopers responded to a crash Saturday afternoon on Titicus Road and determined that a motorcyclist crossed into the opposite lane of travel near Oakridge Road and struck an SUV head on.  70-year old Edward Carroll III, of Greenwich, was pronounced deceased on scene by responding Westchester Paramedics.  It's unclear what caused Carroll to leave his lane of travel.  The investigation remains ongoing.