United States Court of Appeals
                              FOR THE EIGHTH CIRCUIT
                                    ___________

                                    No. 04-3080
                                    ___________

United States of America,                *
                                         *
      Plaintiff - Appellee,              *
                                         * Appeal from the United States
      v.                                 * District Court for the Northern
                                         * District of Iowa.
Leland Richard Vinton,                   *
                                         *
      Defendant - Appellant.             *
                                    ___________

                               Submitted: March 4, 2005
                                  Filed: November 29, 2005
                                   ___________

Before BYE, JOHN R. GIBSON, and GRUENDER, Circuit Judges.
                             ___________

JOHN R. GIBSON, Circuit Judge.

        Leland Richard Vinton was convicted of conspiracy to distribute and possession
with intent to distribute more than fifty grams of a mixture containing
methamphetamine, in violation of 21 U.S.C. §§ 841(a)(1), (b)(1)(B), 846 and 851, and
possession of a firearm as a felon and unlawful user of a controlled substance, in
violation of 18 U.S.C. § § 922(g)(1), 922(g)(3), and 924(a)(2). After a four-day jury
trial, the district court1 sentenced him to 168 months of imprisonment for the
conspiracy, 168 months for possession of methamphetamine with intent to distribute,

      1
        The Honorable Linda R. Reade, United States District Judge for the Northern
District of Iowa.
and 120 months for the firearm violation, with all sentences to be served concurrently.
We affirm.

       We state the facts in the light most favorable to the jury's verdict. In 2002, the
Central Iowa Task Force investigated Vincent Deherrerea, Cody Stanley, Chad Risius,
and Dan Vinton (Richard's brother) regarding methamphetamine distribution in and
around Eldora, Iowa. These four individuals were indicted and pleaded guilty. The
evidence presented at Richard Vinton's (whom we will hereafter in this opinion refer
to simply as Vinton) trial indicated that he was a part of this larger conspiracy. Tina
Larson, Chad Risius, and Alan Haas all testified to driving Deherrerea to Vinton’s
house during 2001 and 2002, where Deherrerea delivered and picked up drugs. A
number of witnesses testified to participating in direct methamphetamine transactions
with Vinton. Deherrerea testified to trading "eight balls" of methamphetamine with
Vinton in exchange for another type of methamphetamine on as many as fifteen
different occasions. Sarah Farmer, Alan Clapp, and Troy Hill also testified to
receiving quantities of methamphetamine from Vinton.

       The government also presented detailed evidence about Vinton's involvement
in a specific, large-scale drug transaction involving a number of parties. The evidence
indicated that Vinton reached an agreement with others to possess and then distribute
methamphetamine to Randy Young in February 2003. Deherrerea testified that he had
a deal to sell Young several ounces of methamphetamine through Haas, but the
transaction was interrupted when he was arrested in February. Deherrerea called
Vinton’s house from jail because he was concerned about having the
methamphetamine in his house. He reached Vinton's girlfriend, Lisa Brandt, and said
"I need one of you two to do me a favor and go to my house and get something out of
my house for me." Amber Risius, who lived with Deherrerea at the time, testified that
Brandt came over and retrieved the package, which was wrapped in black tape.
Vinton testified that Brandt later showed him the package, which she had hidden
under the floorboard of her car.

                                          -2-
        While Deherrerea was still in jail, he heard from Haas that Young was upset
that he had not received the methamphetamine and was threatening Deherrerea's
girlfriend, Risius. Deherrerea told Haas to get some of the methamphetamine from
Vinton and give it to Young. Haas called Vinton, who agreed to help. Vinton
admitted in his testimony that he brought a portion of the methamphetamine to Haas
at his body shop so that Haas could deliver the drugs to Young. Vinton testified that
he brought the remainder of the methamphetamine to Alan Clapp and told him to get
rid of the drugs. Clapp disputed this testimony and stated that he discovered the
package of methamphetamine under an air compressor in his office. Clapp stated that
he assumed it was Vinton's because Vinton had recently provided electrical service
to the air compressor. Clapp turned the methamphetamine over to law enforcement
and after an investigation, Vinton was indicted in June.

       The jury convicted Vinton of the counts as charged. Vinton's Presentence
Investigation Report concluded that he was responsible for at least 1.5 kilograms but
less than 5 kilograms of a mixture or substance containing methamphetamine,
resulting in a base offense level of 34. At sentencing, the district court determined
that while there was enough in the record to support a higher drug quantity, a "very
conservative" number would be at least 350 grams but less than 500 grams. This
finding reduced Vinton's base offense level to 30. The court adjusted this level
upward two levels for obstruction of justice, based on the court's conclusion that
Vinton willfully and knowingly lied as to material matters at trial. The court
sentenced him to 168 months of custody, which was at the top of the sentencing range
for someone with Vinton's criminal history. However, the court also indicated that if
the Sentencing Guidelines were found to be unconstitutional, the court would impose
the even longer sentence of 180 months' imprisonment.

       On appeal, Vinton challenges (1) the sufficiency of the evidence supporting the
drug counts, (2) the district court's determination of the quantity of methamphetamine
attributable to him, and (3) his two-level sentencing enhancement for obstruction of

                                         -3-
justice. He also argues that the district court violated his Sixth Amendment right to
have a jury make the findings on drug quantity and obstruction of justice.

                                           I.

       Vinton contends that there was insufficient evidence to prove that he was guilty
of conspiracy to distribute methamphetamine and of possession with the intent to
distribute methamphetamine. This argument was preserved by his motion for
judgment of acquittal at the close of the government's case. In reviewing sufficiency
of the evidence claims, we view the evidence in the light most favorable to the
government, with all reasonable inferences and credibility determinations made in
support of the jury's verdict. See Glasser v. United States, 

, 80 (1942);
United States v. McDougal, 

, 553 (8th Cir. 1998). "We must uphold the
verdict if any reasonable jury could have found the elements of the crime beyond a
reasonable doubt." 

. We will reverse only if the jury must
have had a reasonable doubt about an essential element of the crime. 

to convict Vinton of conspiracy to distribute at least 50 grams of a
mixture containing methamphetamine, the jury must have found beyond a reasonable
doubt that (1) a conspiracy to distribute the methamphetamine existed; (2) Vinton
knew about the conspiracy; and (3) he knowingly became a part of the conspiracy.
United States v. Davidson, 

, 406 (8th Cir. 1999). Vinton argues that the
government did not establish that he was an active member of the alleged conspiracy
to distribute and that, at best, the government proved that he was in a buyer-seller
relationship with members of the conspiracy. Evidence of a "single transient sales
agreement" and small amounts of drugs consistent with personal use may indicate that
a defendant is only involved in a buyer-seller relationship, rather than a member of the
conspiracy. United States v. Prieskorn, 

, 634 (8th Cir. 1981). However,
to reach such a conclusion there must be "no independent evidence tending to prove
that the defendant had some knowledge of the broader conspiracy." 

                                          -4-
(quoting United States v. Agueci, 

, 836 (2d. Cir. 1962)). We hold that
a reasonable jury could have concluded that Vinton knew about and became a part of
an illegal conspiracy to distribute at least 50 grams of a mixture containing
methamphetamine.

       Although evidence presented at trial demonstrated that Vinton was involved in
Deherrerea's wider distribution ring, the government did not need to prove that Vinton
was a part of this larger conspiracy in order to convict him of the conspiracy count as
charged. It was sufficient that the jury conclude that Vinton was a part of the
conspiracy to distribute methamphetamine to Randy Young in February 2003. A
reasonable jury could have found that this specific transaction involved over 50 grams
of a mixture containing methamphetamine, a substantial amount of drugs inconsistent
with personal use, and that Vinton knew that by giving the drugs to Haas they would
be further distributed to Young.

        Deherrerea's testimony established that Young paid Deherrerea several
thousand dollars in cash for at least four ounces (114 grams) of methamphetamine, but
that Deherrerea had not delivered the drugs at the time of his arrest. Deherrerea
testified that after his arrest he called Vinton's residence from jail because he was
concerned that the methamphetamine intended for the transaction would be found in
Deherrerea's house. Vinton's girlfriend, Lisa Brandt, answered the call and agreed to
go retrieve the methamphetamine. Deherrerea later spoke with Alan Haas, who
mentioned that Young was upset about not receiving his methamphetamine and was
threatening Deherrerea's girlfriend, Amber Risius. Deherrerea told Haas to "talk to
Richard," and instructed him to have Vinton give the drugs to Young. Haas called
Vinton and told him that Young was harassing Risius over the undelivered
methamphetamine. Vinton agreed to meet up with him and bring the drugs. They met
at Haas's body shop and Haas testified that Vinton dropped off "a pretty good-sized
chunk of stuff for me to give to Randy," which Haas estimated to be three to four
ounces (approximately 85 to 114 grams). Vinton admitted in his own testimony that

                                         -5-
his intention in bringing the methamphetamine over to Haas was for Haas to give it
to Young so that Young would stop bothering Risius. In light of this testimony, it was
reasonable for the jury to conclude that there was a conspiracy to distribute over 50
grams of a mixture containing methamphetamine to Young, that Vinton knew about
the conspiracy, and that Vinton knowingly became a part of the conspiracy when he
had the conversation with Haas about the methamphetamine and later delivered it to
Haas's shop.

       Vinton also challenges the sufficiency of the evidence underlying his conviction
for possession with intent to distribute at least 50 grams of a mixture containing
methamphetamine. However, his brief does not detail the grounds on which he
appeals this conviction. As demonstrated above, a reasonable jury could have
concluded that Vinton was guilty of possession with intent to distribute in light of his
involvement in the Deherrerea-Young transaction. Based on Vinton's testimony that
he took the methamphetamine from Brandt and delivered a portion of it to Haas, it was
reasonable for the jury to conclude that Vinton possessed with the intent to distribute
at least 50 grams of a mixture containing methamphetamine.

                                          II.

       Vinton alleges that the district court erred in determining the quantity of
methamphetamine attributable to him. Vinton objected to the calculation of the drug
quantity in the Presentence Investigation Report, and therefore we review the district
court's factual finding regarding the quantity of drugs for clear error. United States
v. Jimenez-Villasenor, 

, 561 (8th Cir. 2001). We can disturb this
determination "only if the entire record definitely and firmly convinces us that a
mistake has been made." United States v. Titlbach, 

, 923 (8th Cir. 2002).




                                          -6-
       In a drug conspiracy, a defendant is held responsible for all reasonably
foreseeable drug quantities that were within the scope of the criminal activity that he
jointly undertook. 

court must "find by a preponderance of the
evidence that the activity involving those drugs was in furtherance of the conspiracy
and either known to that defendant or reasonably foreseeable to him." United States
v. Mickelson, 

, 822 (8th Cir. 2004). If there are objections to the
Presentence Investigation Report, the district court must make findings of fact and rule
on those objections. United States v. Candie, 

, 64 (8th Cir. 1992). The
district court may consider any relevant information "as long as it has 'sufficient
indicia of reliability to support its probable accuracy.'" United States v. Atkins, 

, 1212 (8th Cir. 2001) (quoting U.S.S.G. § 6A1.3(a)). Testimony is not
unreliable as a matter of law just because a witness is a co-conspirator or a
cooperating witnesses. See, e.g., United States v. Sarabia-Martinez, 

,
450 (8th Cir. 2002); 

; United States v. Santana, 

,
864 (8th Cir. 1998).

        The Presentence Investigation Report concluded that Vinton was responsible
for the total amount of methamphetamine (mixture) involved in the wider conspiracy:
between 1.5 and 5 kilograms. At sentencing, Vinton objected to this quantity
assessment and challenged some of the quantity recitations in the offense conduct
statement in the Report. Specifically, he disputed the government's conclusion, based
on Sarah Farmer's testimony, that he sold an ounce of methamphetamine to Travis
Ziesman in July 2002. Vinton also claimed that the amounts that he traded with
Deherrerea should not be linked to the conspiracy as they were exchanged for personal
use. He denied the veracity of Troy Hill's testimony that he had purchased two to four
"eight balls" of methamphetamine from Vinton on up to fifteen occasions. Finally,
Vinton claimed that he was not involved in the intended distribution of
methamphetamine from Deherrerea to Young in February 2003.




                                          -7-
        In response to Vinton's objections, the district judge stated that she did not
believe testimony by Vinton and his witnesses that Vinton never sold
methamphetamine to Hill or anyone else. She found, "He certainly sold and he did
sell to Hill. That's my finding in spite of his testimony to the contrary." However, she
took a more conservative approach to drug quantity than the Presentence Investigation
Report and did not hold Vinton responsible for all quantities in the broader
conspiracy. Rather, the judge limited the drug quantity assessment to the transactions
in which Vinton was directly involved based upon the evidence presented at trial, and
settled on at least 350 but less than 500 grams of a mixture or substance containing
methamphetamine.

       A review of the record demonstrates that the district court's quantity
determination was not clearly erroneous. The portion of the methamphetamine from
Deherrerea's house that Vinton allegedly gave to Alan Clapp, which Clapp then turned
over to law enforcement, weighed 104.81 grams. Alan Haas testified to receiving
approximately 85 to 114 grams from Vinton at his body shop, and Vinton admitted
to delivering a chunk of methamphetamine to Haas. Although Vinton claimed he
never sold methamphetamine to Troy Hill, Hill testified that he purchased two to four
"eight balls" of methamphetamine (each weighing 3 ½ grams) from Vinton on
fourteen or fifteen occasions, which amounts to at least 98 grams. Deherrerea testified
to trading "eight balls" of methamphetamine with Vinton ten to fifteen times, which
constitutes at least 35 grams. Finally, testimony from Sarah Farmer, Alan Clapp, and
Randy Young implicated Vinton in a number of other purchases and sales of
methamphetamine, which adds at least another 100 grams to the total. The district
judge was entitled to rely on this testimony in making her determination, and we
cannot say that the record definitely and firmly convinces us that she was mistaken in
arriving at a quantity of between 350 and 500 grams of a mixture or substance
containing methamphetamine.




                                          -8-
                                           III.

       Vinton also argues that the trial court erred in enhancing his sentence for
obstruction of justice under Sentencing Guideline § 3C1.1. We review a district
court's factual finding in support of a § 3C1.1 enhancement for clear error. United
States v. Molina, 

, 1058 (8th Cir. 1991). We then conduct a de novo
review of the district court's application of the Guidelines to those facts, giving "due
deference to the district court's findings of fact." 

§ 3C1.1 provides for an upward adjustment of two levels
if the defendant "willfully obstructed or impeded, or attempted to obstruct or impede,
the administration of justice during the course of the investigation, prosecution, or
sentencing of the instant offense of conviction" and "the obstructive conduct related
to the defendant's offense of conviction." U.S.S.G. § 3C1.1 (2003). Obstruction of
justice under this provision includes committing, suborning, or attempting to suborn
perjury. U.S.S.G. § 3C1.1, comment (n.4(b)). A witness commits perjury if he
testifies falsely under oath about a material matter with a willful intent to deceive the
fact finder. United States v. Dunnigan, 

, 94 (1993).

       The government bears the burden of proof in showing that the defendant
committed perjury. United States v. Washington, 

, 861 (8th Cir. 2003).
To impose an enhancement for obstruction of justice, the district court must review
the evidence and make an independent finding of perjury by a preponderance of the
evidence, which cannot be based solely on the jury's disbelief of the defendant's
testimony. United States v. Swick, 

, 787 (8th Cir. 2003). If the district
court identifies specific instances in which a defendant has falsely denied knowledge
of or involvement in a conspiracy with the intent to cause the jury to find him not
guilty, that is sufficient for a finding of obstruction of justice. United States v. Pena,

, 157 (8th Cir. 1995).



                                           -9-
      In light of the conflict between Vinton's trial testimony and other evidence
presented at trial, the district court found that Vinton "willfully and knowingly lied
during his trial testimony as to material matters" and that "[t]his wasn't a matter of him
making a mistake or just being inaccurate." Relying on four specific portions of his
testimony, the court concluded:

             I make the finding, based on my evaluation of his truthfulness, not
      solely on the jury's verdict but my own, independent of the jury
      evaluation of him, he was lying. He lied when he stated he did not
      attempt to persuade Amber Risius to provide false testimony to law
      enforcement concerning methamphetamine recovered from her house.
      I don't believe [Lisa Brandt]. He lied and provided false testimony
      concerning his involvement in the distribution of methamphetamine.
             I don't believe the prior witness either, that Mr. Vinton never sold
      to Troy Hill or anyone else. He certainly sold and he did sell to Troy
      Hill. That's my finding in spite of his testimony to the contrary.
             I also find he lied when he stated he did not intend to distribute
      methamphetamine retrieved from the Deherrerea house. And I find that
      he falsely denied he knowingly possessed firearms stored at Alan Clapp's
      home.

       Vinton argues that these findings are not supported by the trial record. While
Vinton is correct that the record does not reflect that he was specifically questioned
about his contact with Amber Risius, he has not demonstrated that the district court's
finding of perjury with respect to the other three items of testimony was clearly
erroneous. The government provided evidence contradicting Vinton's statements
about his sales to Troy Hill, his intention to distribute the methamphetamine from
Deherrerea's house, and his possession of firearms stored at Alan Clapp's home.
Vinton's claims are therefore inconsistent with both the jury verdict and other
testimony, thus providing a basis for the district court's conclusion that Vinton
perjured himself. See United States v. Briggs, 

, 691 (8th Cir. 1992). The
district court's findings were sufficient, and the two-level sentence enhancement for
obstruction of justice was not clearly erroneous.

                                          -10-
                                           IV.

        Vinton contends that the district judge's enhancement of his sentence based on
her findings of drug quantity and obstruction of justice violated his Sixth Amendment
rights. He argues that, under United States v. Booker, 

(2005), these
facts should have been submitted to a jury and proved beyond a reasonable doubt.
Vinton objected to the enhancements at sentencing based on the facts presented at
trial, but did not raise a specific Sixth Amendment challenge at that point. As a result,
we conduct plain error review under the four-part test of United States v. Olano, 

(1993). United States v. Pirani, 

, 549 (8th Cir. 2005). Under
that test, "there must be (1) error, (2) that is plain, and (3) that affects substantial
rights," and we may remedy the error only if it "seriously affects the fairness,
integrity, or public reputation of judicial proceedings." Johnson v. United States, 

, 466-67 (1997).

       The district judge did not instruct the jury to find the specific quantity of drugs
attributable to Vinton or to find whether Vinton committed perjury beyond a
reasonable doubt. The Supreme Court held in Booker that "[a]ny fact, (other than a
prior conviction) which is necessary to support a sentence exceeding the maximum
authorized by the facts established by . . . a jury verdict must be admitted by the
defendant or proved to a jury beyond a reasonable doubt." 

.
Consequently, the court's imposition of enhancements based on judge-found facts
under a mandatory Guidelines regime was an error that was plain under the Sixth
Amendment. See United States v. Keller, 

, 710 (8th Cir. 2005); United
States v. Galaviz-Luna, 

, 801 (8th Cir. 2005); United States v. Alexander,

, 1011 (8th Cir. 2005). In order to show that this plain error affected
Vinton's substantial rights, he must show a "'reasonable probability,' based on the
appellate record as a whole, that but for the error he would have received a more
favorable sentence." 

.



                                          -11-
       Vinton has not demonstrated that he was prejudiced by the two-level
enhancement for obstruction of justice and the increased quantity determination of 350
to 500 grams from the "50 or more" grams found by the jury. The statutory sentences
for the two drug counts Vinton was convicted of both range from a mandatory
minimum of ten years in federal prison up to forty years' imprisonment. 21 U.S.C. §
841(b)(1)(B) (2000). The judicial fact findings did not result in a sentence outside of
this statutory range. Furthermore, the district judge explicitly recognized at
sentencing that there was a possibility that the Guidelines would be found
unconstitutional, so she indicated what her alternative sentence would be if Vinton's
sentence were within her sole discretion. She stated that she would impose 180 rather
than 168 months of custody, based on "the nature and circumstances of the offense
and the history and characteristics of the Defendant." Thus, the record as a whole
does not indicate that the district court would have imposed a more favorable sentence
under the new sentencing regime. To the contrary, it shows that Vinton would be very
likely to receive a higher sentence. Because he cannot establish the substantial rights
part of the Olano test, we hold that the district court did not plainly err in sentencing
Vinton.

      For the foregoing reasons, we affirm Vinton's conviction and sentence.
                      ______________________________




                                          -12-