Paul Z. Lowder appeals his conviction for conspiracy to distribute over one thousand kilograms of marijuana and possession with intent to distribute approximately six hundred pounds of marijuana. Lowder also challenges the district court's imposition of a 340-month sentence. We affirm.
I
On May 7, 1996, the government filed a five-count superseding indictment against the appellant, Paul Z. Lowder (“Lowder”), his sons Richard Lowder (“Richard”) and James Lowder (“Jim”), and eight other defendants, including Michael Terry. Count One charged all the defendants, including Low-der, Richard, Jim, and Terry with conspiracy to distribute over one thousand kilograms of marijuana in violation of 21 U.S.C. § 846. Count Two charged that on or about April 4, *550 1995, Lowder, Richard, and Terry possessed with intent to distribute approximately six hundred pounds of marijuana in violation of 21 U.S.C. § 841(a)(1). Count Four charged that certain of Lowder’s assets were subject to forfeiture under 21 U.S.C. § 853. The remaining counts did not involve Lowder.
Richard pled guilty before trial, and the government proceeded against Lowder, Jim, and Terry. At trial, Paul M. Lowder (“Paul M.”), son of the appellant, Paul Z. Lowder, testified that he, his father, and two of his brothers were deeply involved in the marijuana business. Other cooperating co-defendants testified to the same effect. Richard, on the other hand, testified for his father, alleging that although he and his brother Paul M. ran a thriving marijuana business, his father, Lowder, had nothing to do with drugs.
With regard to Count Two specifically, Jerry Lee Hathcock, a cooperating co-defendant, and Paul M. testified that on April 4, 1995, they waited with Terry and Richard at a hotel in Waxahachie, Texas for a load of marijuana to arrive. The testimony indicated that some time in the afternoon, a large bus arrived with hundreds of pounds of marijuana packed in U-Haul boxes. The government presented the jury with pictures of a bus that both Hathcock and Paul M. identified as the one that carried the marijuana to Waxahachie. The vehicle pictured was a large, customized Blue Bird bus, which other testimony indicated had a sticker price of approximately $250,000. The government introduced evidence that Lowder owned just such a bus, which he had purchased with cash. Hathcock could not identify the driver of the Blue Bird bus, but Paul M. stated that it was his father, Lowder. Richard, in testifying for his father, did not deny being present at the scene and helping to unload the marijuana, but he claimed that the driver was a heavy-set man with red hair named Sean Puopolo — not his father.
The jury acquitted Jim and Terry on all counts, but convicted Lowder of conspiracy as charged in Count One and possession with intent to distribute as charged in Count Two. At sentencing, the district court overruled Lowder’s objections to the Pre-Sentence Report (“PSR”) and assigned an offense level of 40, reflecting findings that Lowder had obstructed justice by suborning Richard’s perjured testimony, was responsible for the total amount of drugs possessed and sold by his co-conspirators, and had been a leader/organizer of the enterprise. Lowder filed a timely appeal, but before we disposed of the case, Lowder moved in the district court for a new trial, alleging that newly discovered evidence could demonstrate his innocence of the crimes charged. Included with this motion was a request that the district court conduct an
in camera
inspection of any government file existing on the drug trafficking activities of the now deceased Sean Puopolo, in order to determine whether such file(s) contained material required to be disclosed to the defense under
Brady v. Maryland,
II
Lowder first alleges that the district court erred in denying his request for an
in camera
inspection of the government’s file on the narcotics activities of Sean Puopolo in order to determine whether that file contains the type of evidence that must be disclosed to the defense under
Brady v. Maryland, supra.
We review the district court’s
Brady
determination
de novo. See United States v. Dixon,
In order to establish a due process violation under
Brady,
a defendant must show that: (1) evidence was suppressed; (2) the suppressed evidence was favorable to the defense; and (3) the suppressed evidence was material either to guilt or to punishment.
See Brady,
In rejecting Lowder’s request for an
in camera
inspection, the district court assumed “that the government possessed evidence of Puopolo’s drug trafficking activity and withheld such evidence,” but nevertheless determined that the absence of this evidence did not “taint” Lowder’s trial. We agree. The mere fact that Puopolo participated in the marijuana trade says nothing about Lowder’s guilt or innocence and thus does not implicate the core concerns of
Brady. See, e.g., United States v. Agurs, 427
U.S. 97, 112,
Ill
Lowder also claims that the district court erred in denying his motion for a new trial based on evidence that Lowder alleges to be newly discovered. We review the district court’s denial of a motion for new trial based on allegedly newly discovered evidence only for an abuse of discretion. See
United States v. Jaramillo,
In order to warrant a new trial on the basis of newly discovered evidence, a defendant must demonstrate that: (1) the evidence is newly discovered and was unknown to the defendant at the time of trial; (2) failure to detect the evidence was not due to a lack of diligence by the defendant; (3) the evidence is not merely cumulative or impeaching; (4) the evidence is material; and (5) the evidence introduced at a new trial would probably produce an acquittal.
United States v. Pena,
Even assuming
arguendo
that this alibi, if believed, would “probably produce an acquittal” for Lowder (at least on Count Two), Lowder has not met his burden of demonstrating that the failure to procure Knight’s testimony at trial was not the result of his own lack of diligence.
See United States v. Sullivan,
IV
With regard to his sentence, Lowder alleges that the district court erred in following the PSR’s recommendation that he (1) be held responsible for 6,622 kilograms of marijuana, (2) receive a two-level obstruction of justice enhancement for suborning or attempting to suborn perjury, and (3) receive a four-level enhancement as a leader/organizer of criminal activity. We review the trial court’s legal interpretation and application of the sentencing guidelines
de novo
and its factual findings for clear error.
United States v. Parker,
A
The Sentencing Guidelines authorize an adjustment for obstruction of justice “when a defendant engages in conduct which ‘obstructed or impeded, or attempted to obstruct or impede, the administration of justice during the investigation, prosecution, or sentencing of the instant offense.’ ”
United States v. Graves,
Hei’e, Lowder concedes that the district court did not commit clear error in determining that his son Richard committed perjury by testifying under oath that Lowder did not supply him with marijuana. Lowder also concedes that the district court correctly inferred that Lowder must have known of Richard’s perjury. Lowder claims instead that the district court erred by concluding that Lowder “procured” the false testimony because Lowder’s attorney, not Lowder himself, called Richard to the stand. We disagree.
*553 A defendant charged with an enhancement under U.S.S.G. § 3C1.1 “is accountable for his own conduct and for conduct that he aided and abetted; counseled, commanded, induced, procured, or willfully caused.” U.S.S.G. § 3C1.1 app. note 7. Thus, even if Lowder did no more than “counsel” or “induce” his lawyer to call Richard as a witness, the enhancement was properly applied. We do not find it implausible in light of the record as a whole that Lowder in fact gave such counsel or inducement. Particularly in light of the government’s well-known threats to seek a perjury enhancement for Richard if he testified for his father, the district court could reasonably infer that Lowder and his attorney discussed Richard’s testimony before trial. During those discussions, we certainly consider It plausible if not likely that Lowder’s attorney would have suggested to Lowder that the government might seek a similar enhancement against anyone using Richard’s testimony. Given that the ultimate result of these discussions was the decision of Lowder’s attorney to call Richard as a witness, we again see nothing implausible about the inference that Lowder counseled his attorney in favor of calling Richard — perhaps indicating a desire to accept the risk at sentencing, or perhaps inducing the attorney to call Richard by assuring him that the proposed testimony was truthful. In any event, whatever discussions actually took place between Lowder and his attorney, these plausible inferences, taken together, sufficiently support the district court's factual finding, particularly in light of Lowder’s failure to submit any sworn rebuttal.- The mere fact that we ourselves might have drawn different or less certain conclusions based on the record before us is simply irrelevant.
In the alternative, Lowder contends that enhancing his sentence for presenting perjured testimony undermines his right to present a defense. Yet just as “a defendant’s right to testify does not include a right to commit perjury,”
see United States v. Dunnigan,
B
Lowder also challenges the district court’s assessment of his base offense level, calculated based on the PSR’s recommendation that Lowder be held responsible for 6,622 kilograms of marijuana. So long as the sentencing court’s adoption of a particular drug quantity is plausible in light of the record as a whole, it is not clearly erroneous.
United States v. Sparks,
C
Lowder’s final contention is that the district court erred in following the PSR’s recommendation that Lowder receive a four-level adjustment for a leader/organizer role pursuant to U.S.S.G. § 3Bl.l(c). Lowder claims that he was at most a supplier for his sons, but did not organize or direct any of their distribution activities. We review the district court’s determination regarding the defendant’s leadership status only for clear error.
See United States v. Powell,
In support of its recommendation for the four-level adjustment, the PSR made no factual findings, but merely stated that a federal agent would be available at sentencing to justify the leader/organizer conclusion. *554 No agent appeared at sentencing, but the district court found “based upon the trial testimony, the jury’s verdict and inferences from the available facts that Mr. Lowder exercised a leadership role so as to warrant an enhancement under Guideline Section 3B1.1.” On appeal, the government points to two pieces of evidence in support of this finding: (1) the testimony of Richard’s wife, Tonya Lowder (“Tonya”), that Lowder,con-tinuously telephoned her home to inquire about Richard’s progress in selling “tracks” (allegedly a code-word for marijuana), and (2) Tonya’s testimony that Lowder, when confronted about his involvement in marijuana distribution, claimed that he was only trying to “help” his sons by giving them a “good start.” 2
While we do note that this evidence is rather thin in terms of demonstrating Low-der’s control or authority over other individuals,
see
U.S.S.G. 3B1.1, app. note 4, we cannot say that the district court clearly erred in making those inferences from Tonya’s testimony.
See United States v. Valencia,
Here, we also' have a defendant claiming to have functioned merely as a supplier, but nevertheless having strong business connections to the main players in an organization devoted to the sale and distribution of large amounts of marijuana. Those business ties, in addition to Tonya’s testimony regarding Lowder’s demonstrated interest in the progress of her husband’s sales indicate that the district court committed no clear error in inferring that Lowder occupied an organizational or leadership role in the conspiracy. We therefore will not disturb the district court’s enhancement under U.S.S.G. § 3B1.1.
V
In summary, we find no error in the district court’s denial of an in camera inspection of certain files allegedly possessed by the government, its denial of Lowder’s motion for a new trial based on allegedly newly discovered evidence, or its sentencing determinations. The judgment of the district court is in all respects AFFIRMED.
Notes
. The district court relied on this standard of review to reject all of Lowder's objections to the PSR because Lowder presented no sworn rebuttal evidence.
See Parker,
. We decline the government's invitation to infer from Lowder's familial relationship to the other conspirators that he was somehow "in charge” of the operation. Although we recognize that in the correct context, family relationships, along with other probative evidence, may give rise to reasonable inferences regarding the power structure of a criminal enterprise, the government has presented no evidence here supporting the idea that Lowder's children looked to Lowder for guidance or authority. In the absence of such evidence, wé will not attempt to extrapolate Low-der's role in the criminal enterprise.
