Undеr an indictment charging him with the murder in the second degree of Philip Kantrowitz, the defendant was found guilty. The case comes here by appeal under U. L. c. 278, §§ 33A-33Q-, with numerous assignments of error. A report relating to certain aspects of this and a prior indictment was before us in
Commonwealth
v.
Chase,
The indictment arose out of the following events. On Thursday, January 12, 1956, Chase, who was then fifteen years old, together with Reginald F. Metcalf, aged thirteen, entered Kantrowitz’s store in Newburyport with a rifle for the purpose of cоmmitting a robbery. They forced the victim to lie down on the floor and, while Chase was attempting to bind his hands, the rifle was discharged by Metcalf, killing Kantrowitz. Metcalf’s case was considered by us in
Metcalf
v.
Commonwealth,
1. The defendant contends that the judge abused his discretion in ordеring that he be manacled during the trial. While it is desirable, where possible, to avoid the shackling
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of a defendant during Ms trial (see
Commonwealth
v.
Agiasottelis,
2. The defendant’s second assignment relates to the denial of his motion to quash the indictment on the ground that it contained the words “and the jurors furthеr say that the defendant is guilty of murder in the second degree and not in the first degree.” The presence of the word “guilty” in the quoted phrase, it is argued, deprived the defendant of his presumption of innocence. There is no merit in this contention. Thе phrase meant no more than that the defendant was charged with murder in the second degree. The indictment was in the form prescribed by statute when “murder in the first degree is not alleged” (Gr. L. c. 277, § 79), and has been in use in this Commonwealth for many years. See
Commonwealth
v.
Ibrahim,
3. Assignmеnts of error 3, 5 and 11 challenge the judge’s denial of a motion to suppress a document recording a confession of the defendant, and his subsequent ruling admitting the document. It is contended that the circumstances under wMch the confession was оbtained were so coercive as to render its use at the trial violative of the due process of law guaranteed by the Fourteenth Amendment of our Federal Constitution. The defendant relies on
Haley
v.
Ohio,
There was conflicting evidence regarding the precise circumstances in which Chase was interrogated and in which he initially implicated himself. But in reviewing a trial judge’s preliminary determination regarding the voluntary or involuntary nature of a confession, “only those . . . circumstances . . . unquestioned in the State’s version of what happened are relevant to the constitutional issue.”
Commonwealth
v.
Makarewicz,
Chase and Metcalf were apprehеnded on the morning of January 13, 1956, and brought to police headquarters in Newburyport. There they were questioned by two State police officers, one of whom told Chase that “he didn’t have to tell us anything, that it was a serious crime, that the man was dead.” Chase admitted before noon that he had been present when the crime was committed, after which he reenacted, at the scene of the crime, what had taken place. At no time was he beaten, threatened, coerced, or promised special treatment in return for making a statement. He was permitted to see his parents around 1 p.m. About 8:30 p.m. on the same day, after he had spoken with his mother, Chase gave the statement of what had ocсurred in the presence of a stenographer, his mother, his father, the principal of his school and various State and local officers.
Considering similar objections to the admission of a defendant’s incriminating statements in
Commonwealth
v.
Makarewicz,
Nor do we perceive any violation of the defendant’s rights as delineated by the Supreme Court in
Escobedo
v.
Illinois,
The admissibility of the confession is not affected by the fact that Chase was not formally arraigned until the morning after his confession. The decision in
McNabb
v.
United States,
We might add that the question of the legality of Chase’s confession was rendered academic when he took the stand at the trial, with full knowledge of the significance оf what he was doing, and corroborated every material element contained therein.
1
Thus, had there been error in admitting the confession, this testimony removes conclusively the possibility “that the evidence complained of might have сontributed to the conviction.”
Fahy
v.
Connecticut,
4. The defendant takes nothing by his fourth and twelfth assignments. These challenge the admissibility of the document containing the confession on the ground that it *743 was an incomplete record. There was evidence beforе the court, including testimony of the stenographer who recorded the statement, sufficient to warrant the conclusion that the statement, while not entirely a verbatim record, was a substantially complete account of all that oсcurred.
5. In his opening the district attorney was permitted to refer to the joint acts of the defendant and Reginald Met-calf, and to read a prior indictment of both boys for first degree murder.
2
Subsequently, this indictment and the boys’ pleas of guilty to secоnd decree murder were read in evidence. The defendant’s exceptions to the opening and to the admission of the prior indictment and pleas are the subject of assignments 6, 7 and 9. He contends that since the present indictment сharges only himself and not Met-calf with murder, evidence of Metcalf’s prior indictment and plea were irrelevant. He argues further that the admission of such evidence, because it tended to prove the guilt of the person who fired the shоt without affording Chase the right of confrontation, was prejudicial. The transcript reveals that the district attorney sought to introduce only Chase’s plea to the prior indictment, and that it was at the insistence of counsel for the defendant thаt both pleas were read. Accordingly, any objection was waived. There is no question regarding the admissibility of the prior indictment and Chase’s plea thereto in the light of
Commonwealth
v.
Chase,
6. Assignment 10 relates to the admission in evidence of a рrior indictment of Chase for armed robbery and his plea thereto. It is contended that this evidence is inadmissible because it tends to establish his commission of an independent crime. There is no merit to this argument since the armed robbery to which this рlea was entered provided
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the very basis, under the felony-murder rule, for the present indictment. This evidence showed an admission of an unlawful act of the sort from which the malice aforethought necessary for a conviction of seсond degree murder could be inferred. See
Commonwealth
v.
Boyajian,
7. The defendant alleges error in the denial of his motion for a directed verdict (assignments 13 and 14). We have answered in our discussion of assignments 3, 5 and 11 that part of his argument which refers to the allegedly illеgal evidence (the confession) upon which the conviction was obtained. The defendant’s other contention is that under G-. L. c. 265, § 1, he could not be convicted of anything but first degree murder. Section 1 of c. 265, reads in part: “Murder committed ... in the commission or attempted commission of a crime punishable with death or imprisonment for life, is murder in the first degree. Murder which does not appear to be in the first degree is murder in the second degree. ” It is argued that where murder is charged under thе felony-murder rule, as incorporated in this statute, the foregoing language permits a conviction for first degree murder only. This was not the situation under the common law (see
Commonwealth
v.
Green,
8. Assignments 15 and 16 challenge the judge’s charge to the jury in two respects. Exception was taken to that portion in which the judge instructed the jury that they might regard Chase’s plea of guilty of second degree mur
*745
der to the earlier indictment as an admission of “serious juvenile conduct which might . . . allow you to infer that he had malice аforethought.” This point was resolved in
Commonwealth
v.
Chase,
The defendant also excepted to the instruction that the jury were not to consider the constitutional questions whether the defendant had been informed of his right to remain silent and of his right to obtain counsel. The defendant cоntends that this instruction removed these factors from the jury’s consideration of whether Chase’s confession was voluntary or coerced. We do not agree. The question of the voluntariness of the confession was explicitly left to the jury, аnd they were told to consider “the age of the defendant [and] the circumstances surrounding the obtaining of the statement.” A reading of the entire charge on the issue of the confession convinces us that there was no error.
Judgment affirmed.
Notes
When the defendant took the stand to testify he stated, in response to questions put by the judge, that he was aware that he did not have to testify and that if he chose not to do so no adverse inference could be drawn by the jury; that he had been informed by his cоunsel that certain legal defences concerning his confession would be “waived or largely nullified”; and that the decision to testify was his own and was “for the purpose of seeing that the truth comes out.”
This indictment was involved in the proceedings set forth in
Commonwealth
v.
Chase,
