Application:1. In one of the two appeals now before us, People v. Shields, one of the instructions to the jury is identical to that which was disapproved in Trinkle. In the other appeal, People v. Harris, the third instruction states that a person is guilty of the crime of murder "if, in performing the acts which cause the death, he intends to kill or do great bodily harm to that individual."2. Although this instruction follows the language of section 9-1(a)(1) rather than that of section 9-1(a)(2), as in Trinkle, it is subject to the same objection that it permits the jury to return a verdict of guilty upon evidence that the defendant intended only to cause great bodily harm short of death. An instruction must make it clear that to convict for attempted murder nothing less than a criminal intent to kill must be shown.3. The part of the holding in Muir that an instruction was not erroneous which charged that proof only that a defendant knowingly and intentionally created a strong probability of death or great bodily harm to another person satisfies the intent element required for attempted murder was error and is hereby overruled. Erroneous also was that part of the holding that an indictment for attempted murder was not defective which alleged that the defendant's acts to his knowledge created a strong probability of death or great bodily harm to another person. That part too of the holding in Muir is overruled. Conclusion:In cause People v. Harris, we therefore reverse the judgments of the appellate and circuit courts, and remand the cause to the circuit court of Champaign County for a new trial not inconsistent with this opinion. In cause No. 50340, People v. Shields, we affirm the appellate court.