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¶2The first 'error assigned is upon the admission of the testimony of one Emma Squires. She was called to testify to certain confessions of the defendant. His counsel objected upon the ground that he was, at the time of the alleged confession, under the influence of intoxicating liquor, and was affected by delirium tremens, or otherwise insane, and they *497asked to be allowed to show by the witness herself, and other witnesses, that such was the fact, before she should be allowed to testify in regard to the confession, to the end that the court might sustain'their objection to her testifying in regard to the confession, if the court should be satisfied that the defendant was affected with delirium tremens, or otherwise insane or, at least, if her .testimony was to be received it should be after the jury had been made acquainted with the defendant’s condition.
¶3The court overruled the objection, denied the request and allowed the witness to testify. Pier testimony was that in June, 1876, while riding along the road not far from the defendant’s farm, she heard the defendant in the road, a long way off, making a great outcry. Upon coming up to him she asked him what was the matter, and he answered that the spirits had hold of him-. She asked him what spirits, and he said “Peter’s.” She asked him what he had done with his little boy that his spirit should haunt him, and hne said he killed him. She asked how he killed him, and he said he shot him and cut his throat. Pie asked her to take the spirits away from him. Upon cross-examination she testified that she thought him intoxicated; that he was without any hat, and that the team which he had been driving had left him and gone on.
¶4Evidence that the defendant, at the time of the alleged confession, was intoxicated or insane, was proper to impair or destroy the effect of the confession. The defendant was allowed to introduce such evidence upon cross-examination. But he complains that he should have been allowed to introduce it first, for the reasons above set out. In our opinion the court did not err. It was for the jury to determine what weight should be given to his confession, in view of his mental condition, as shown. Commonwealth v. Howe, 9 Gray, 110. The court, therefore, could not properly have excluded evidence of the confession. Nor do we think it was the defendant’s right to show his condition first, by way of preparing the *498mind of the jury against any undue impression from the evidence of the confession. The time when the jury was made acquainted with it must, we think, be deemed immaterial. They must be presumed to have given the evidence in relation to it its due weight.
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¶6The propounding of a theory is not an admission or confession. It is at most a mere circumstance. In the theories propounded by the defendant, taken by themselves, we see very little, if anything, tending to criminate him. If they were so strange or naturally improbable as to evince insincerity and a design to mislead, the propounding of them would be a circumstance against him. As to whether there is such natural improbability in them we need not consider. The materiality of the testimony rests upon a different ground. It was shown in evidence that the defendant stated to one Tillet that his son went west with some movers, and while walking by the side of a team of horses was kicked by a horse and killed. Now, if the boy was killed by’the kick of a horse, he was not killed by the bursting of a gun. The former appears to have been stated as a fact. It should have excluded the latter as a theory. The discrepancy, however, was subject to explanation. The theory might have been propounded at a time when he was not credibly informed of anything inconsistent with it. The jury was entitled to consider *499his statements in connection with the other evidence in the case. If they found an irreconcilable inconsistency it would be a circumstance against him. Roscoe on Crim. Ev., 712.
¶7While this is undoubtedly the law, it is proper to observe that some caution should be exercised, lest too much importance should be given to such a circumstance. An innocent person finding himself suspected might make false representations to allay suspicion. Such instances have occurred.
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¶9The defendant objected to this testimony on the ground that the witness showed that the confession was not voluntary. Whether the statement was voluntary we need not consider. The statement was not a confession. It contains an admission that he had lied about the boy’s disappearance. If he had lied about it, it was a circumstance against him. The defendant’s admission that he had lied was evidence that he had lied. The testimony was proper.
¶10IY. One Zimmer was introduced as a witness by the State, who testified that he was living with the defendant at the time the boy disappeared; that he was present at the breakfast table that morning when the defendant told him that he must go with him to Manchester that day and hear what he had said to the saloon keepers against, the defendant not *500getting any inore drink. The witness further testified that there was no difficulty between the defendant and the boy that morning.
¶11The counsel for the State then asked a question in these words: “Didn’t Eeltes tell the boy at the table that morning, while you and the family were there, that the boy Peter had ■been to Manchester, and forbid the saloon keepers from letting hi in (Eeltes) have any more liquor, and he would see who was boss, or something to that effect?” The defendant objected to the question upon the ground that the State could not be allowed to impeach its own witness. The court overruled the objection, and the witness answered: “Yes, sir; he said that, and he added still to that, ‘I’ll fix you.’ He put that all in.”
¶12We see northing in this calculated to impeach the witness, or even scarcely calling for a rectifying of what he had said. It is true he had previously said that there was no difficulty between Eeltes and the boy that morning. In one sense there was. But the evidence shows that the boy said nothing; that he merely arose from the table and -went out from the house. There was no altercation. It is easy to understand in what sense the witness meant that there was no difficulty between them. The question is manifestly objectionable as leading, but it was not objected to upon this ground. We think that the objection made was properly overruled.
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¶15The theory of the defendant’s counsel is that the boy com*502mitted suicide. This theory, it is said, accounts for the bullet in the skull; the shallow burial in a field afterward plowed and reaped, it is said, accounts for the fracture; and the critical condition of the defendant’s wife accounts for his concealing the burial. These considerations are urged with great force, and it is not to be denied that they are entitled to much weight. But they are not of such weight as to justify us in saying that the verdict is without support.
¶16Many errors are assigned which we have not specifically noticed. Some of them, we think, are covered substantially by the views which we have expressed. Some of them involve questions which will not probably arise again. As to the others we think we may say that if there is error it is error without prejudice. For the error in excluding expert testimony in regard to the defendant’s mental condition at the time of the alleged confession the case must be
¶17Reversed.