Under a well-established exception to the hearsay rule, a co-conspirator’s statements made while the conspiracy is in effect and in furtherance of its aims are admissible against fellow conspirators.
Lawrence v. State,
The pertinent facts are as follows. Early on the morning of May 24, 1981, Katherine Buress was beaten to death after intruders bound her hands and feet with shoestrings. Mrs. Buress, a widow, lived alone and was known to possess many large diamonds. For several months, the murder remained unsolved. Then, in September 1981, Shirley Wilson informed the police that Ronald Johnson, her boyfriend and Mrs. Buress’s nephew, had committed the murder. Later, the authorities began to suspect that Johnson had acted in concert with the defendant, Billy Rivenbark.
According to Wilson’s trial testimony, on several occasions in May 1981, Johnson and Rivenbark discussed Mrs. Buress’s diamonds as well as the possibility of robbing a drug dealer’s house. On May 23, 1981, the day before his aunt was murdered, Johnson had demanded that Wilson find him a ski cap, scissors, and a pair of gloves. Johnson used the scissors to cut holes in the ski cap.
At about midnight on the night of May 23rd, Rivenbark roused Johnson, and the two left together. Johnson returned at about 4:00 a.m. After some questioning, he told Wilson that something had gone wrong, that someone had gotten hurt, but that he had his alibi.
Throughout the night and during much of the next day, Johnson periodically dialed a telephone number, listened, and then hung up. At about 4:00 p.m., he indicated to Wilson that the police had found Mrs. Buress’s body. He then explained that he and Rivenbark had intended to burglarize Mrs. Buress’s house, but that their plan had gone awry. Mrs. Buress had discovered them. Then, to coerce her into revealing the location of her diamonds, Rivenbark had brandished a .22 caliber pistol and ordered Johnson to hit her. Johnson refused and argued with Rivenbark, thus revealing his identity to his aunt.
*151 Also on the day after the murder, Wilson met with Rivenbark, who told her: “We got our alibis____As long as everyone stays cool everything will be fine.” Rivenbark suggested that he and Johnson should not see each other for a while and instructed Wilson to tell Johnson “to make sure the stuff was gone.” After receiving this message, Johnson brought a brown bag from his car. Wilson discovered that the bag contained a pair of shoestrings, the ski cap with holes cut out, and a pair of bloody gloves—the same pair that she had given to Johnson the day before. Johnson ordered Wilson to place the bag in a white, plastic bag, which was taken out with the next morning’s trash.
In the months following, Johnson continually beat Wilson to prevent her from disclosing her knowledge of the crime. Because of these beatings, Wilson left Johnson in September 1981, filed assault charges against him, and disclosed to the police his role in Mrs. Buress’s death. The police did not immediately arrest Johnson, so he was not aware that he had become a murder suspect. In November 1981, the police persuaded Wilson to meet with Johnson while wearing a bodywire. The purpose of the meeting ostensibly was to discuss the assault charges pending against Johnson; however, Wilson managed to elicit from Johnson numerous statements in which he inculpated both himself and Riven-bark in Mrs. Buress’s murder. Shortly after the meeting, Rivenbark and Johnson were charged in the Circuit court for Baltimore County with murder and related offenses.
The State introduced Johnson’s November 1981 statements at the separate trials of Johnson and Rivenbark. Johnson was convicted, and the Court of Special Appeals affirmed.
Johnson v. State,
No. 858, September Term 1982 (filed February 3, 1983),
cert. denied,
*152
At Rivenbark’s second trial, the State again introduced Johnson’s recorded statements made to Wilson in November 1981. The jury again found Rivenbark guilty of first degree murder and burglary.
1
Rivenbark was sentenced to imprisonment for life on the murder conviction and twenty years concurrent on the burglary conviction. The Court of Special Appeals again reversed the murder conviction, but it affirmed the burglary conviction. The intermediate appellate court held that Johnson’s statements were erroneously admitted against Rivenbark. The court rejected the State’s arguments that, as a matter of law, every conspiracy contains an implied, subsidiary conspiracy of silence, and that Johnson’s recorded statements were made during the pend-ency of such an implied conspiracy.
Rivenbark v. State,
The Court of Special Appeals also held that Rivenbark had effectively appealed only his murder conviction. The appellate court, therefore, affirmed Rivenbark’s burglary conviction.
Both the State and Rivenbark filed petitions for writs of certiorari. We granted both petitions.
I.
This Court has never considered whether every criminal conspiracy includes, by implication, a subsidiary conspiracy to conceal evidence of the substantive offense that the *153 conspirators agreed to commit. 2 Relying on decisions from other jurisdictions, the Court of Special Appeals rejected this theory. In reaching its decision, however, the court recognized that some courts had reached a contrary result.
The leading case. in support of the Court of Special Appeals’ conclusion is
Krulewitch v. United States,
Justice Jackson, in an often cited concurring opinion in
Krulewitch,
found it “difficult to see any logical limit to the ‘implied conspiracy,’ either as to duration or means.”
For several decades, the Supreme Court has adhered to the rule and rationale of
Krulewitch. See, e.g., Anderson v. United States,
On the other hand, some courts have admitted co-conspirator’s statements made after the conspirators had achieved their main aim but in connection with an attempt to conceal evidence of the substantive offense.
See, e.g., Carter v. State,
The cases adopting the theory of an implied subsidiary conspiracy to conceal, however, fail to recognize that, in virtually every case, conspirators will attempt to conceal their offense. As Justice Jackson pointed out in Krule *156 witch, these attempts at concealment will continue as long as prosecution is a possibility, and prosecution is a possibility as long as the attempts at concealment continue. Thus, under these decisions, virtually every conspiracy will include a subsidiary conspiracy of concealment of uncertain, if not unlimited, duration. Yet even these courts seldom hold that such an implied conspiracy has extended more than a few weeks after the commission of the substantive offense. 3 In this case, however, the co-conspirator made his challenged statements almost six months after the commission of the substantive offense. 4
*157
Moreover, as pointed out by the Court of Special Appeals in this case (
Courts that endorse the theory of an implied conspiracy of concealment seldom explain their reasoning. In particular, these courts fail to consider the possibility of placing their decisions on the narrower ground that the conspirators had not achieved their principal aim when the challenged statements were made. Nor do they respond to the criticisms set forth by the Supreme Court in Krvlewitch, supra.
*158 We therefore agree with the Court of Special Appeals that the better reasoned cases reject the theory that every criminal conspiracy includes, by implication, a subsidiary conspiracy to conceal evidence of the substantive offense that the conspirators agreed to commit. Consequently, we adopt the Krulewitch view that a co-conspirator’s statement is inadmissible unless it was made before the attainment of the conspiracy’s central objective.
This is not to say that statements made in connection with acts of concealment are never admissible. As noted above, conspirators do not necessarily achieve their chief aim at the precise moment when every element of a substantive offense has occurred. Before the conspirators can be said to have successfully attained their main object, they often must take additional steps,
e.g.,
fleeing, or disposing of the fruits and instrumentalities of crime. Such acts further the conspiracy by assisting the conspirators in realizing the benefits from the offense which they agreed to commit.
See Osborne v. State, supra,
99 Miss, at 423,
In addition, if the conspirators expressly agree at the outset to engage in concerted acts of concealment after committing a substantive offense, then statements made in connection with those acts are admissible.
See Grunewald,
Applying these considerations to the facts of this case, it is apparent that, long before Johnson made the recorded statements to Wilson, Johnson and Rivenbark had attained the principal aim of their conspiracy—a burglary. The conspirators’ chief objective may not have been achieved until they disposed of the instrumentalities of the crime on May 25, 1981, when garbagemen collected a plastic bag containing the shoestrings, ski cap, and bloody gloves. Nevertheless it clearly had been achieved by November 1981, when the statements were made.
The State also argues that Johnson and Rivenbark expressly conspired to conceal their offenses. In support of this contention, the State emphasizes the following facts which occurred in May 1981: Rivenbark’s suggestion to Wilson that he and Johnson should not see one another for a while; Rivenbark’s statement to Wilson that “We got our alibis”; Rivenbark’s instruction to Johnson, communicated through Wilson, to “make sure the stuff was gone”; Johnson’s destruction of the shoestrings, the ski cap, and the bloody gloves; and Johnson’s continued beatings of Wilson.
These facts are not sufficient to establish an express conspiracy of concealment extending to November 1981.
In this case, neither conspirator distinctly or explicitly communicated to the other his assent to the “agreement.” Rivenbark’s statement to Wilson that he and Johnson should not see one another for a while, and the beatings Johnson inflicted on Wilson, are unilateral acts that in no way indicate the presence of an agreement. While Riven-bark’s statement that “We got our alibis,” and Johnson’s compliance with Rivenbark’s order to “make sure the stuff was gone,” may suggest an obvious understanding to conceal the crime soon after it happened, this evidence does not show an ongoing distinct and explicit agreement to conceal.
*160 The Court of Special Appeals correctly held that Johnson’s challenged statements did not fall within the co-conspirator exception to the hearsay rule.
II.
Although the Court of Special Appeals ruled that Johnson’s taped statements were inadmissible against Rivenbark, the court refused to reverse Rivenbark’s burglary conviction. The court reasoned that Rivenbark had neither mentioned the conviction in his brief nor argued that the conviction should have been reversed. Thus, the court concluded, the burglary conviction’s validity was not before the court.
It is uncontested that, at his trial, Rivenbark properly preserved his objection to the admissibility of the statements. The issue related to both the murder and the burglary counts. Furthermore, Rivenbark’s order of appeal was not expressly limited to the murder conviction. Consequently, the validity of the burglary conviction was before the Court of Special Appeals.
The Court of Special Appeals need not address an issue that an appellant failed to argue in his brief.
See, e.g., Foster, Evans and Huffington v. State,
Turning to this case, we observe that Rivenbark was convicted of felony murder. Burglary was the underlying *161 felony. In arguing against his felony murder conviction because of the improper admission of hearsay evidence, Rivenbark obviously put in issue the validity of his burglary conviction as well. Accordingly, we must reverse the Court of Special Appeals’ decision to the extent that it held that Rivenbark was not entitled to a new trial on the burglary charges. 5
JUDGMENT OF THE COURT OF SPECIAL APPEALS AFFIRMED IN PART AND REVERSED IN PART. CASE REMANDED TO THE COURT OF SPECIAL APPEALS WITH DIRECTIONS TO REVERSE THE JUDGMENTS OF THE CIRCUIT COURT FOR BALTIMORE COUNTY AND REMAND THE CASE TO THAT COURT FOR A NEW TRIAL IN ACCORDANCE WITH THIS OPINION. BALTIMORE COUNTY TO PAY COSTS.
Notes
. Specifically, the jury found Rivenbark guilty of felony murder, but not guilty of premeditated murder and second degree murder.
. On a number of occasions, however, the Court of Special Appeals has addressed similar questions.
Compare Thomas v. State,
. The decisions often do not reveal the amount of time that has passed between the commission of the substantive offense and the co-conspirator’s statement. The following cases, however, indicate the amounts of time that the courts have found tolerable.
People v. Columbo,
. We are aware of only one case in which a court held that a conspiracy of concealment had lasted more than six months. In
Evans v. State,
. Rivenbark also contends that the trial court erred in sentencing him to life imprisonment for felony murder and to 20 years to be served concurrently for burglary. We agree. In
Newton v. State,
