EXECUTION OF WILLIAM FYFE.Tbit vrtUbrJ factor, convicted at the Late Criminal Session a of the murder of ooe Robert Co* *t Brisbane, Moretoa Bay. underwent the extreme sentence of the law on Tuesday morning In front of II. M. Gaol, at Darlingburat. The evidence adduced on hie trial, though essentially circumstantial, was such as to satisfy an impartial and discriminating jury of his guilt, and notwithstanding the oft reiterated and solemn protestations of innocence, which Fyfe persisted in from the moment of condemnation until that of execution, no reasonable doubt can be enuruined but that he was the perpetrator of as aggravated n murder as any with which the Criminal record a of New South Wales nr# stained.The lips of the unhappy man bring now teaUd by death, whatever explanation he might have afforded of the detail# of hie atrocious crime, has gone with him into the grave.