After a three week trial in which 104 witnesses testified and approximately 200 exhibits were introduced, defendants Craig Scott Keltner and Charles Bruce Nabors were convicted by a jury of a violation of the Racketeer Influenced and Corrupt Organizations Act (RICO), 18 U.S.C. § 1962(c). The jury found the defendants committed the following racketeering acts: robbery and kid-naping of Bill Anderson, robbery of Donna Johnson, interstate transportation of stolen property, conspiracy to rob and extort money from and attempted robbery of the Woodland Bank in Tulsa, Oklahoma, kidnaping of George Foster and Karen Fisher Perkins, wire fraud (Nabors only) and robbery and kidnaping of Vandy S. Gavin (Keltner only).
Both defendants were also convicted of conspiracy to commit extortion and robbery and interstate transportation of stolen jewelry. In addition, Nabors was convicted of mail and wire fraud, felon in possession of a firearm and possession of a stolen firearm. Keltner was convicted of structuring a cash transaction.
The District Court 2 sentenced Nabors to life imprisonment and sentenced Keltner to thirty years’ imprisonment. Both appeal their convictions. We affirm the convictions of both defendants.
I. BACKGROUND
The events involved in this, prosecution commenced following Nabors’ release from federal custody on parole in November 1990. In December 1990, Fern Kilgore’s Ford Bronco was stolen. Kilgore’s Bronco was rammed into a Radio Shack store during a burglary in January 1991. Billy Keltner, Keltner’s brother, admitted his participation and implicated Nabors in the burglary of the Radio Shack store during an interview on February 25, 1991 with Federal Bureau of Investigation (FBI) agents and other law enforcement officials. Several compatible walkie-talkies and police scanners were stolen from the store. A police scanner guide of the brand sold exclusively by Radio Shack was later recovered by law enforcement from Keltner’s ear. Billy Keltner stated that Na-bors did not find the specific type of microphone he wanted in the Radio Shack store so they burglarized a second store, where Na-bors obtained the type of microphone for which he was looking. The internal components of one such microphone were identified as similar to the microphone used on a hoax bomb device involved in an extortion and robbery attempt of the Woodland Bank in Tulsa, Oklahoma. The items stolen from Radio Shack and the second store were similar to the items used in several subsequent crimes of which Keltner and Nabors were convicted.
The jury found Nabors and Keltner guilty of the January 1991 robbery and kidnaping of Bill Anderson. During the FBI interview on February 25, 1991, Billy Keltner admitted he participated in this crime. Anderson’s description of the crime during his trial testimony coincides with Billy Keltner’s description given to the FBI. The items stolen from Anderson included guns, cash, jewelry, a *666 photograph of Keltner’s sister and a vehicle. Some of these items, including the vehicle and a gun, were later recovered by Anderson. The stolen jewelry had a value of between $21,000 and $22,000. Anderson identified Nabors at trial as one of the perpetrators of the robbery and kidnaping.
The jury, also found Nabors and Keltner guilty of the January 1991 robbery of Donna Johnson. The items stolen from Johnson included jewelry valued at $241,000, firearms, a camera, cash and a Cadillac. Johnson’s Cadillac was later recovered. Billy Keltner admitted his participation in this crime to the FBI. Johnson testified at trial regarding the details of the robbery in her home. Billy Keltner’s descriptions of the crime and the jewelry taken (including a Rolex watch) are almost identical to Johnson’s trial testimony.
Keltner was found guilty of the robbery and kidnaping of Vandy S. Gavin. Gavin identified Keltner at trial as the person who robbed him in his home. Wade Wallis testified at trial that he, Keltner and Billy Kelt-ner committed the robbery of Gavin in March 1991.
The jury found Keltner and Nabors guilty of conspiracy to commit extortion and robbery of the Woodland Bank in Tulsa, Oklahoma (Tulsa bank robbery). The jury also found the Tulsa bank robbery was a racketeering act under the RICO count. Viewing the evidence most favorably toward the guilty verdict,
United States v. Darden,
Defendants placed a device on Foster’s car which was triggered to stop the car’s engine. On June 14, 1991, Foster’s car’s engine stopped and could not be restarted.
Foster arranged for Perkins to give him a ride to work that morning. As Perkins was driving them to work, a van bumped into the back bumper of Perkins’ car. Foster got out of the car to survey the damage. Nabors approached Foster with a gun and directed Foster to return to Perkins’ car. Nabors got in the back seat of Perkins’ car and directed Perkins to drive to a parking lot near the Woodland Bank. The van followed them to the parking lot.
Upon arriving in a parking lot, Nabors directed both Perkins and Foster to move to the van. Nabors ordered Foster to retrieve $1 million from the Woodland Bank. Foster informed the defendants the bank did not have $1 million cash on hand and the bank vault would not open for another 30 minutes. One of the defendants stated he knew the bank had $3.7 million. The most recent Statement of Condition of the Bank indicated the bank had $3.7 million in cash due from other banks. An employee of the bank testified that she believed Nabors came into the bank approximately one week prior to the Tulsa bank robbery and requested a copy of the Statement of Condition. The employee testified Nabors did all of the talking and a second man (younger than Nabors), dressed in white painters’ pants, was with him. The employee did not identify the second man. Terry Leach and Darla Leach testified that Nabors and Keltner were in Oklahoma approximately one week prior to the Tulsa bank robbery. Darla Leach testified that Keltner was wearing white painters’ pants during this visit to Oklahoma.
Following a discussion with Keltner about Foster’s statement that the bank did not have $1 million in cash on hand, Nabors decided to have Foster retrieve all of the cash in the possession of the drive-up tellers. Nabors fastened a metal box with a cable around Foster’s body and told Foster it was a bomb. Nabors told Foster to return to *667 Perkins’ ear with the money and follow the map contained in the trunk of the ear.
Foster entered the Woodland Bank and immediately called the FBI. The device placed on Foster was later found to be a microphone which allowed the defendants to hear what Foster was saying after he entered the bank. While Foster was driving to the bank, Keltner drove the van to a second parking lot where Nabors and Keltner ordered Perkins to transfer to a brown car. Once they were in the brown car, Perkins could hear Foster’s voice on a two-way radio possessed by Nabors. When Nabors and Keltner heard Foster call the police, their attempt to start the car failed. Perkins escaped out the back door, flagged down a car and was given a ride to the bank.
The defendants were initially indicted in October 1992 and were ultimately tried on a second superseding indictment filed in September 1993. The District Court initially dismissed the RICO count in 1993, and this Court reversed.
United States v. Nabors,
II. DISCUSSION
A. RICO Violation
The RICO count against the defendants asserts a violation of 18 U.S.C. § 1962(c), which provides:
(c) It shall be unlawful for any person employed by or associated with any enterprise engaged in, or the activities of which affect, interstate or foreign commerce, to conduct or participate, directly or indirectly, in the conduct of such enterprise’s affairs through a pattern of racketeering activity or collection of unlawful debt.
1. Void For Vagueness
Defendants argue that the statutory substantive definition of RICO is void for vagueness as to the elements of enterprise and pattern of racketeering activity. “[T]he void-for-vagueness doctrine requires that a penal statute define the criminal offense with sufficient definiteness that ordinary people can understand what conduct is prohibited and in a manner that does not encourage arbitrary and discriminatory enforcement.”
Kolender v. Lawson,
2. Admissibility Of Criminal Conduct Not Charged As Predicate Act
Defendants contend the District Court abused its discretion in admitting evidence of uncharged criminal conduct to establish the elements of RICO. Witness Gerald Perryman was allowed to testify about his recruitment by the defendants to participate in the robbery of a bank in Hot Springs, his involvement in the conspiracy to rob the bank, overt acts that he and the defendants committed in preparation of the planned robbery, and his eventual exclusion from the venture because Keltner discovered that he had mentioned it to his ex-wife.
*668
The District Court admitted the evidence at issue pursuant to our holding in
United States v. Ellison,
3. Sufficiency of Evidence To Sustain RICO Conviction
To establish a violation of RICO, the government must prove “(1) that an enterprise existed; (2) that the enterprise affected interstate or foreign commerce; (3) that the defendant associated with the enterprise; (4) that the defendant participated, directly or indirectly, in the conduct of the affairs of the enterprise; and (5) that the defendant participated in the enterprise through a pattern of racketeering activity by committing at least two racketeering (predicate) acts.”
Darden,
In reviewing the sufficiency of the evidence to support a jury verdict, the court views “the evidence in the light most favorable to the guilty verdict, giving the government the benefit of all reasonable inferences that might be drawn from the evidence.”
Darden,
a. Enterprise
Three elements are necessary to éstablish the existence of a RICO enterprise: “(1) a common purpose; (2) a formal or informal organization of the participants in which they function as a unit (‘some continuity of both structure and personnel’); and (3) ‘an ascertainable structure distinct from that inherent in the conduct of a pattern of racketeering activity.’ ”
Darden,
Defendants contend the proof fails as a matter of law to prove that an enterprise existed distinct, separate and apart from the racketeering activity. We disagree. The evidence viewed most favorably toward the guilty verdicts demonstrates that Nabors led a “small but prolific crime ring,”
Davidson,
b. Pattern of Racketeering Activity
“A pattern of racketeering activity consists of at least two predicate acts, although two may not be sufficient [to prove such a pattern].”
Darden,
In this case, the ten predicate acts of which the jury convicted the defendants were related. Several of the items taken by defendants during the robberies were used in subsequent robberies and the Tulsa bank robbery, including microphones, walkie talkies, firearms, a police scanner and a police scanner guide. Jewelry taken by defendants during the robberies was transported across state boundaries, which served as the basis for their convictions for interstate transportation of stolen property. Several of defendants’ victims testified that Nabors was the individual in charge and directed the activities of the other individuals during the commission of such crimes. The defendants’ criminal activity progressed from burglary of unoccupied structures, to robberies of owner-occupied homes, to kidnaping, to attempting to extort $1 million from a bank. Defendants’ progressing criminal activity became more complex, requiring significant planning to avoid detection by law enforcement.
Defendants contend there was only one alleged scheme to rob a bank or extort monies, and the government, therefore, failed to establish a pattern of racketeering activity. This argument relates to the continuity element and is precluded by the Supreme Court’s statement that “... it is implausible to suppose that Congress thought continuity might be shown
only
by proof of multiple schemes.”
H.J. Inc.,
c. Interstate Commerce
Defendants contend the proof failed to show the alleged enterprise affected interstate commerce. We find sufficient evidence in the record to establish this element of the offense. Both defendants made repeated trips between Arkansas, Oklahoma, Texas and Louisiana. Three of the predicate acts occurred outside the state of Arkansas: the Tulsa bank robbery, interstate transportation of stolen property, wire fraud and mail fraud.
B. Admissibility of Evidence Claims
Defendants contend the District Court erred in the evidentiary rulings discussed below. “We review the evidentiary rulings of a district court only for abuses of discretion, and will reverse only when an improper evidentiary ruling affects the substantial rights of the defendant or when we believe that the error has had more than a slight influence on the verdict.”
United States v. Ballew,
*670 1. Billy Keltner’s Statement of February 25, 1991
The District Court allowed the admission of the FBI 302 report produced following the FBI’s interview with Billy Keltner on February 25, 1991. Defendants object to the admission of this statement on the grounds that it was hearsay, it was admitted in violation of the Confrontation Clause of the Sixth Amendment, and it was the result of an unlawful bounty hunting agreement in violation of the Fifth Amendment’s Due Process Clause.
Defendants objected to the FBI 302 report on hearsay grounds. The District Court held the statement was against Billy Keltner’s penal interest and was admissible under Fed. R.Evid. 804(b)(3). We review this evidentia-ry ruling for abuse of discretion.
Ballew,
Admission of hearsay statements may be allowed under Rule 804(b)(3) if the following three elements are met:
(1) the declarant must be unavailable to testify at trial, (2) the statement must tend to subject the declarant to criminal liability to such an extent that no reasonable person in his position would have made the statement unless he believed it to be true, and (3) the statement must be supported by corroborating circumstances clearly indicating the trustworthiness of the statement.
United States v. Bobo,
The information Billy Keltner gave to the FBI was supported by corroborating circumstances. Billy Keltner’s description of the robbery or extortion of a Tulsa bank being planned matches almost exactly the manner in which the crime was actually committed just four months after Billy Keltner gave his statement to the FBI. Billy Keltner informed the FBI that the bank president and his wife would be kidnaped and they would hold the wife hostage while requiring the bank president to retrieve $1 million from the bank. During the robbery they would use some of the microphones they had obtained during a robbery of an electronics store and walkie talkies they had stolen from a Radio Shack *671 store to facilitate communication among the participants. Nabors was to furnish a necklace with speakers so the participants in the crime could listen to what was happening inside the bank. A metal box, which could be hung around the bank president’s throat, was being constructed to amplify the speakers.
Mr. Foster’s and Ms. Perkins’ identifications of the defendants at trial as well as their descriptions of the manner in which the crime was committed provide additional corroboration of Billy Keltner’s statement to the FBI regarding the Tulsa bank robbery. Other portions of Billy Keltner’s statement were supported by evidence introduced at trial and corroborating testimony from the victims of the other robberies. We find no abuse of discretion by the District Court in admitting the February 25, 1991 FBI 302 report of the FBI’s interview with Billy Kelt-ner as a statement against penal interest.
Defendants’ argument that the Sixth Amendment was violated by the admission of the FBI 302 report lacks merit. In examining the reliability of hearsay statements in conjunction with the Confrontation Clause, the Supreme Court stated:
[W]hen a hearsay declarant is not present for cross-examination at trial, the Confrontation Clause normally requires a showing that he is unavailable. Even then, his statement is admissible only if it bears adequate “indicia of reliability.” Reliability can be inferred without more in a ease where the evidence falls within a firmly rooted hearsay exception.
Ohio v. Roberts,
Defendants maintain the agreement between Billy Keltner and the FBI was an illegal “bounty hunting” agreement and the statement should not have been admitted because it violated defendants’ due process rights to a fair trial. We disagree. The agreement between Billy Keltner and the FBI stated he was to provide truthful information to the FBI. If such information led to the arrest and indictment of the targeted individual (Nabors), the State of Texas and the prosecutor’s office would recommend to the appropriate judge that Billy Keltner remain on probation and the Motion to Revoke Probation be dismissed. The portion of the agreement which referred to Billy Keltner’s testimony before a grand jury or in court was eliminated prior to signing the agreement because he refused to provide such testimony.
Billy Keltner’s agreement with the FBI and the State of Texas amounted to a contingent plea agreement. A panel of this Court found in
United States v. Irons,
*672 2. Billy Keltner’s Grand Jury Testimony
The District Court excluded Billy Keltner’s October 3, 1991 testimony before a grand jury, which defendants state they offered during the trial. Defendants contend the District Court abused its discretion in refusing the admission of this evidence, because defendants were not allowed to develop their theory of defense that Billy Keltner fabricated evidence against them. Defendants claim the District Court failed to specifically make a finding as to the reliability and admissibility of Billy Keltner’s October 1991 grand jury testimony. We disagree.
Although defendants state they offered the grand jury testimony during the trial, defendants did not provide a citation to the record where such offer was made. We did not locate such offer in the record. Rule 28(e) of the Federal Rules of Appellate Procedure states in relevant part, “[i]f reference is made to evidence the admissibility of which is in controversy, reference shall be made to the pages of the appendix or of the transcript at which the evidence was identified, offered, and received or rejected.” Even assuming the defendants offered the grand jury testimony, we are confident the District Court’s ruling excluding such testimony was proper.
Prior to trial defendants filed a motion in limine to exclude both Billy Keltner’s grand jury testimony and the FBI 302 report discussed above. In granting defendants’ motion to exclude the grand jury testimony, the District Court found it was not admissible as a statement against penal interest because the government had granted immunity to Billy Keltner in exchange for his testimony. The District Court further found the grand jury testimony was not admissible under Fed.R.Evid. 804(b)(5) because the testimony lacked the “particularized guarantees of trustworthiness” necessary for its admission under this rule.
See United States v. Barrett,
3. Tome Objection
The Supreme Court held in
Tome v. United States,
Defendants argue the District Court erred in allowing the government to question one of the government’s witnesses, Terry Don Leach, about prior consistent statements made by Leach to the FBI and to two separate grand juries. These questions were allowed on redirect examination by the government after the defendants had cross-examined Leach about such statements and raised the issue of fabrication or improper influence or motive. Defendants contend Leach’s motive to lie was obvious: Leach, accused of a crime, was avoiding prosecution by cooperating with the authorities and by incriminating the defendants. Defendants assert the consistent statements at issue were made after Leach’s motive to lie or fabricate had arisen, and therefore, the District Court erred in overruling defendants’ Tome objection.
The government argues the rule at issue here is the rule of completeness, Fed. R.Evid. 106, rather than the Supreme Court’s rule in Tome. The government contends the questions posed to Leach on redirect examination consisted of asking him about portions of the statements which the defendants omitted during cross-examination. We agree with the government’s position and find no abuse of discretion in allowing such questions by the government on redirect examination.
C. Brady and Jencks Act Issues
Defendants assert the government violated
Brady v. Maryland,
During trial, Agent Handley testified he documented in at least three FBI 302 reports that Billy Keltner refused to testify in any court proceedings because he was afraid of Nabors and family members were involved in the criminal activities being investigated. Although defendants received the February 25, 1991 FBI 302 report discussed above, defendants stated at trial that they had not received any FBI 302 report documenting Billy Keltner’s alleged fear of Na-bors. Agent Handley testified that to his knowledge all of the FBI 302 reports authored by him were provided to the defendants. Upon requesting such reports, the District Court directed defendants to raise the issue outside the presence of the jury. Defendants thereafter failed to request that the District Court consider the issue of the FBI 302 reports. Defendants did not include this issue in their motions for a new trial. During defendants’ request at trial for the additional FBI 302 reports concerning Billy Keltner, defendants did not state the issue as being whether the government violated the principles set forth in
Brady,
Even if defendants had properly preserved their
Brady
claim for review, it is without merit. In
Brady,
the Supreme Court stated that “suppression by the prosecution of evidence favorable to an accused upon request violates due process where the evidence is material either to guilt or to punishment, irrespective of the good faith or bad faith of the prosecution.”
Defendants have not shown any of the elements necessary to succeed on a
Brady
claim. The record before the District Court on the suppression issue is insufficient to show the prosecution suppressed the FBI 302 reports at issue. Even if they were suppressed, defendants have failed to show the FBI 302 reports documenting Billy Kelt-ner’s fear of Nabors were “favorable” to them. Defendants allege such reports may “lead to other materials buried somewhere within the FBI.” Defendants further contend such reports are crucial to the defense regarding the issue of governmental misconduct. “Mere speculation that materials may contain exculpatory evidence is not, however, sufficient to sustain a
Brady
claim.”
Van Brocklin,
Moreover, defendants have not satisfied the materiality element. The defendants have not shown there is a reasonable probability that the result of the trial would have been different had the FBI 302 reports documenting Billy Keltner’s fear of Nabors been disclosed to them. Defendants do not specify how such reports may have affected the outcome of the trial. We therefore hold the defendants have failed to establish a Brady violation.
*674
Regarding their Jencks Act claim, defendants failed to object at trial on the grounds that the alleged failure to provide the FBI 302 reports at issue amounted to a Jencks Act violation. Defendants did not raise this issue in their motions for a new trial. Defendants have waived this argument and we need not address it here.
See United States v. Grajales-Montoya,
D. Remaining Issues
In addition to the issues addressed above, the defendants have raised and briefed several other issues. These issues include arguments that (1) the Fourth Amendment and 18 U.S.C. § 3109 were violated by the failure to “knock and announce” in the execution of a search warrant; (2) the evidence was insufficient to sustain Nabors’ convictions of mail and wire fraud and possession of a stolen firearm; (3) the evidence was insufficient to sustain defendants’ convictions of interstate transportation of stolen property; (4) the jury should have been instructed on the law relating to illegal bounty hunting agreements; (5) defendants are entitled to a new trial based on the decision in
Old Chief v. United States,
III. CONCLUSION
For the reasons stated herein, we affirm the District Court’s judgments as to both defendants.
Notes
. The Honorable Stephen M. Reasoner, United States District Judge, United States District Court for the Eastern District of Arkansas.
.
United States v. Angiulo,
