holding the trial court's, rather than the jury's, finding of an aggravating factor was harmless beyond a reasonable doubt | holding the trial court’s, rather than the jury’s, finding of an aggravating factor was harmless beyond a reasonable doubt | “A special verdict is a common law procedural device by which the jury may answer specific questions posed by the trial judge that are separate and distinct from the general verdict.” | "A special verdict is a common law procedural device by which the jury may answer specific questions posed by the trial judge that are separate and distinct from the general verdict."