226 Pa. 283 | Pa. | 1910
Opinion by
Defendant was charged with the crime of murder. On the trial of the case this instruction was asked for on his behalf, “ If the jury believe from the evidence that at the time of the homicide the defendant was insane he must be acquitted.” The point was answered in this way, — “This point is affirmed, but you should be fully satisfied of defendant’s insanity.” In Meyers v. Com., 83 Pa. 131, where a like defense was set up, the instruction was that the defense could avail only as the jury were “satisfied beyond a reasonable doubt” that the prisoner was insane at the time the act was committed. We there held that the instruction was too stringent; that it threw the prisoner upon a degree of proof beyond the legal measure of his defense; that all that is required is proof which is satisfactory, such as flows fairly from a preponderance of the evidence; and the judgment was accordingly reversed. In Coyle v. Com., 100 Pa. 573, the instruction was that the defense of insanity must be established “by clearly preponderating evidence.” This was held to be error on the ground that it was practically saying that the defense was to be established beyond all doubt or uncertainty; and a reversal there followed. In Com. v. Gerade, 145 Pa. 289, the instruction was that the insanity relied on as a defense “must be clearly proved.” This was held to be error, and the judgment was reversed. In this latter case it was said, “As applied to the degree of proof required to rebut the presumption of sanity, and sufficiently prove the existence of insanity, there is no appreciable difference between the expression “clearly proved,” and “proved by clearly preponderating evidence.” If there is any difference the former calls for the higher degree of proof. It is almost equivalent to saying “ proved beyond a reasonable
Still more pronounced was the error which is made the subject of the fourth assignment. In answer to a point submitted the court ruled as follows, “The burden of reducing the crime from murder to manslaughter where it is proved that the prisoner committed the deed lies on him, but it is incumbent on the commonwealth to satisfy you beyond a reasonable doubt of those facts and circumstances which constitute a crime of murder in the first degree.' If you are sat