¶1The defendant was indicted for the offense of murder. Upon the trial the evidence involved the three grades of homicide, murder, voluntary manslaughter, and justifiable homicide. In charging the jury, the trial judge instructed them, amongst other things, as follows: “You will further observe, from the definition of express malice and implied malice which I have given you, that *654malice, in its legal sense, means an unlawful intention to take human life. Malice does not necessarily consist in ill-will or hatred; malice may exist without ill-will or hatred; and whenever there exists in the mind of a person that kills another, but for one moment, an unlawful intention to take human life, if that unlawful intention exists for any length of time, it constitutes malice. If a person kills another with an unlawful intention in his mind, and is not justified under the principles of law which I will further give you in charge, he would be guilty of murder.” Exception was taken to this charge, as not correctly stating to the jury the law of intent in the commission of a homicide, and as so instructing them as that, if the evidence had really established the guilt of the defendant of the offense of voluntary manslaughter only, and had not established his guilt of the offense of murder, they would have been nevertheless constrained to find him guilty of the latter offense. A critical analysis of the instruction given will reveal its error. The court charged the jury generally, in effect, that if one had for an instant an unlawful intention to kill, he would be guilty of murder. As a universal proposition this is not correct; for voluntary manslaughter is unlawful and consists in the intentional killing of a human being upon sudden heat of passion, etc. So it will be seen, from the very definition of voluntary manslaughter, that one may have an unlawful intention to slay', or an intention unlawfully to slay, and still not be guilty of the offense of murder. The essence of the latter offense consists in the killing with premeditation; a taking of thought beforehand. It carries with it the idea of deliberation; and therefore, instead of instructing the jury as the court did, it should have instructed the jury, that an intention deliberately foi’med existing in the mind of the slayer for never so short a time unlawfully to take the lifp of another, is *655the premeditation which the law accepts as conclusive evidence of malice. The killing of a person upon premeditation, however brief, is one thing, and killing in response to the promptings of overmastering passion another; the one is murder, the other voluntary manslaughter. An instruction, therefore, which leaves out of consideration the idea of premeditation or deliberation in forming the intent, has the eflect to constrain a finding for murder where the jury might otherwise convict only of voluntary manslaughter. This was a harmful error. The evidence was close and conflicting as to the grade of the homicide, and the defendant should not have been embarrassed by instructions to the jury which denied to him the benefit of a theory favorable to his defense.
¶2Let the judgment of the court below be Reversed.