Evans, J.
Jonas Hicks was found guilty, without recommendation, of the murder of J arrett J. Davis, and to the judgment overruling his motion for a new trial he excepts.
1. In the impaneling of the jury, the statutory questions were propounded to three jurors who, by their answers to these questions, qualified as being competent and impartial. The defendant challenged their competency and put them upon the court as a trior, relying solely upon the following petition, signed by them, to prove their incompetency: “To the Hon. Z. A. Littlejohn, Judge of the Superior Court of said County. We, the undersigned citizens of Sumter County, respectfully request and urge that a special term of court be called for the purpose of trying Jonas Hicks, who recently killed J arrett Davis, of the 15th District of Sumter County, Ga.; the facts and circumstances connected with said killing we feel more than amply justifies the Court in calling a special term of the Court for the purpose above requested.” This being the only evidence offered by the movant to show the alleged disqualification of the jurors, the court held the jurors competent. In his certificate to this ground of the motion for a new trial, the judge certifies that the petition was signed, not only by the three jurors whose competency was questioned, but also by about five hundred other citizens, some five weeks before the special term of court at which the defendant was tried.
Every person accused of crime is entitled, under the constitution, to a trial by an impartial jury. When the competency of a juror is challenged on the ground of favor, and conflicting evidence is submitted to the judge, who acts as a trior, his ruling as such trior upon the disputed facts is final and will not be reviewed by this court. Moon v. State, 68 Ga. 688. It is otherwise where the challenge is what is known at common law as challenge for principal cause. Turner v. State, 114 Ga. 421. This kind of challenge is based upon alleged facts from which, if proved to be true, incapacity to serve is conclusively presumed. Treating' the cause urged against the juror’s competency as one of principal challenge, let us inquire if the signing of the petition was such an act as to disqualify the juror as a matter of law. When the juror qualifies himself by his answers to the statutory questions propounded to him on the voir dire, he is to be deemed a competent and impartial juror, and the burden is upon the defendant to show his disquali*82fication. Dumas v. State, 63 Ga. 600. There is nothing in the petition signed by the jurors to indicate any bias on their part against the accused, nor does the language used give any intimation of any opinion entertained by them as to his guilt or innocence. The only reason assigned in the petition for requesting the convening-of a special term of court for the purpose of trying the accused was that the petitioners felt that “the facts and circumstances connected with said killing” more than amply justified the judge in calling a special term of the court. These jurors swore that they had not expressed any opinion based on any evidence delivered under oath, as to the guilt or innocence of the'accused, or from having seen the crime committed, and were perfectly impartial between the State and the accused. Their information concerning the facts and circumstances connected with the homicide was, so far as appears, obtained from rumor. The mere fact of their signing a petition, with five hundred other citizens, urging the propriety of giving the defendant a speedy trial, in no wise suggested that these jurors had any fixed opinion as to the guilt of the accused or were otherwise disqualified from serving upon the jury empaneled to try him. The defendant made no effort to show that in point of fact the jurors had formed or expressed any opinion, or had been active in circulating the petition and urging others to sign it, or had been guilty of any conduct indicating their bias and prejudice against the accused. On the contrary, counsel for the accused relied ujoon the petition as affording conclusive evidence of the partiality of the jurors who signed it, and insisted that, as matter of law, no amount of proof going to show that the jurors really had formed no ojoinion as to the guilt of the accused and were impartial as between him and the State would suffice to overcome the presumption of prejudice against him to be drawn from the naked fact that they had joined with others in presenting that petition to the court. We can not assent to the proposition that this petition affords the basis .for any such legal presumption as will exclude all inquiry into the real truth concerning the fitness of the persons who signed it to act as jurors. "To hold otherwise would be to arbitrarily disqualify all jurors included within the five hundred citizens who joined in the petition. In Dumas’ case, 63 Ga. 600, one of the jurors who was attacked as incompetent admitted on examination that he had heard a part of the evidence delivered *83by one of the witnesses on a former trial of the ease, and that he, with others, had arrested men charged with the same crime, without warrant, and carried them to the county site, where they were released; and yet this court ruled that these admissions by the juror were insufficient to prove that he was incompetent, after he had ■qualified himself as a juror by his answers to the statutory questions propounded to him on the voir dire. In John v. State, 16 Ga. 200, it appeared that one of the jurors who tried the case had, just before he was sworn in chief, remarked that if he was on the jury, he would hang the prisoner. The juror did not deny that he made this remark, but explained that it was made as a mere idle jest, and that he did not then know who had been killed, or what negro was to be tried, and that he had made up his verdict solely on the evidence and the law as given in charge. Accordingly, this court held that, treating this explanation as true, the juror was not disqualified. The evidence relied on by the defendant in the present case, even if suggestive of an inference that the jurors may have formed an opinion that the accused was guilty of the ■crime with which he was charged, did not raise any conclusive legal presumption of disqualification, nor was this evidence sufficient to overcome the sworn statements of the jurors, made on the voir dire, that as matter of fact they were impartial between the State .and the accused, and were otherwise competent to sit upon the jury.
2. The defendant complains that the court refused, on written request, to give in charge to the jury the law of voluntary manslaughter as contained in the Penal Code, § 65. The case made by the State was the wanton slaying of an unarmed man who was merely trying to prevent the renewal of a personal difficulty between the accused and a fellow laborer, and had done no more than .advance towards the accused and call upon him to surrender his pistol. The defendant by his statement sought to justify the killing upon the theory of a threatened attack upon him by the deceased and his brother. The evidence for the State made a case of murder; the statement of the accused presented only the theory -of self-defense; neither remotely suggested voluntary manslaughter, and the court properly declined to instruct the jury upon that grade of homicide.
Judgment affirmed.
All the Justices concur, except Fish, O. J., absent, and Atkinson, J., dissenting.