Legal Research AI

United States v. Dixon

Court: Court of Appeals for the Fifth Circuit
Date filed: 1997-12-29
Citations: 132 F.3d 192
Copy Citations
85 Citing Cases
Combined Opinion
                 IN THE UNITED STATES COURT OF APPEALS

                           FOR THE FIFTH CIRCUIT
                              _______________

                                 No. 96-60277
                               _______________



                        UNITED STATES OF AMERICA,

                                                 Plaintiff-Appellee,

                                    VERSUS


                       DWIGHT DIXON; STANLEY KNOX,

                                                 Defendants-Appellants.

                        _________________________

            Appeals from the United States District Court
               for the Northern District of Mississippi
                       _________________________

                             December 29, 1997

Before MAGILL,* SMITH, and DeMOSS, Circuit Judges.

MAGILL, Circuit Judge:



        Appellants Stanley Knox and Dwight Dixon were convicted of

various federal offenses related to their participation in a drug

trafficking conspiracy.        Appellants appeal their convictions and

sentences, raising a torrent of legal challenges. We vacate Knox's

conviction for conspiracy and affirm the district court in all

other respects.



                                       I.

    *
      Circuit Judge of the United States Court of Appeals for the Eighth Circuit,
sitting by designation.
       Between 1992 and 1995, appellant Stanley Knox operated a large

cocaine distribution organization in Tippah County, Mississippi.

Knox's organization consisted of over nine members who worked under

Knox's direction to obtain, transport, and distribute crack and

powder cocaine.        Knox used his own residence as the distribution

center and headquarters for the organization.                      Knox employed

several dealers, including appellant Dwight Dixon, to sell crack

cocaine from Knox's house and to deliver crack cocaine to customers

at other locations.            Knox and his dealers sold crack cocaine

twenty-four hours per day, seven days per week.

       Knox arranged, participated in, and directed several trips to

pick    up   cocaine    from    Memphis       and   Nashville,    Tennessee,    for

distribution in Tippah County.                These trips were taken several

times    per   week,    and    sometimes       every   other     day,   and   Knox's

organization garnered between two and three ounces of cocaine on

each trip.     If Knox or his runners obtained powder cocaine on a

trip, then Knox would supervise cooking the powder cocaine into

crack cocaine for future sale.            Knox, himself, made at least four

trips to Nashville and picked up between six and nine ounces of

cocaine on each trip.          Dixon made at least one trip with Knox to

Memphis to pick up two ounces of cocaine.                 In July 1994 two of

Knox's runners, Mitchell Knox (Mitchell) and Barry Cook, were

arrested while returning from Memphis after obtaining three ounces

of cocaine for Knox.          At the time, Cook and Mitchell were driving

Knox's white Mercedes, which displayed a license plate for a

different vehicle registered to Dixon.


                                          2
     Local, state, and federal authorities investigated Knox's and

Dixon's activities by using undercover agents and informers.                 The

agents and informers made numerous controlled drug buys directly

from either Knox, Dixon, or other members of Knox's organization.

Most of the controlled drug buys were performed at Knox's house,

although some were performed at other locations in accordance with

Knox's directions.

     On June 22, 1995, a grand jury issued a twenty-three count

indictment against ten defendants for various drug and firearm

violations.        Dixon was charged with one count of conspiracy to

possess with intent to distribute cocaine base between 1991 and

1995, in violation of 21 U.S.C. § 846.              Knox, in addition to being

charged with the conspiracy count, was charged with one count of

unlawfully engaging in a continuing criminal enterprise (CCE) from

1992 to March 1995, in violation of 21 U.S.C. § 848.               Knox also was

charged with eight counts of possessing with intent to distribute

cocaine base, in violation of 21 U.S.C. § 841,1 two counts of using

and carrying firearms in relation to drug trafficking, in violation

of 18 U.S.C. § 924(c),2 ten counts of using the telephone to

facilitate the commission of a felony under 21 U.S.C. § 841, in

violation     of    21   U.S.C.   §   843,3   and    one   count   of   attempted

possession of cocaine, in violation of 21 U.S.C. §§ 841 and 846.

     After Knox and Dixon's indicted codefendants entered plea

     1
         The government dismissed three of these counts during trial.
     2
         The government dismissed these counts during trial.
     3
         The government dismissed one of these counts during trial.

                                         3
bargains with the government, the government proceeded to trial

against Knox and Dixon.        The government dismissed several counts

against     Knox   during   trial,   and   the   jury   ultimately    returned

verdicts of guilty against both Knox and Dixon on all remaining

counts.      The district court sentenced Knox to life imprisonment4

and sentenced Dixon to 240 months imprisonment.               Knox and Dixon

raise numerous issues on appeal concerning both their convictions

and their sentences.



                            II.   DOUBLE JEOPARDY

         Knox contends that his convictions for both participating in

a drug conspiracy and engaging in a CCE violate the Double Jeopardy

Clause of the Fifth Amendment.          We review Knox's double jeopardy

claim de novo.       See United States v. Fields, 72 F.3d 1200, 1209

(5th Cir.), cert. denied, 117 S. Ct. 48 (1996).

         Count one of the indictment charged Knox with participating in

a drug conspiracy under 21 U.S.C. § 846 and alleged that the

conspiracy existed from 1991 through 1995.                Count two of the

indictment charged Knox with engaging in a CCE under 21 U.S.C.

§ 848 and alleged that the CCE existed from 1992 through 1995.              The

jury convicted Knox on both counts, but the district court only

imposed sentence on Knox for his CCE conviction.

         As the government concedes, a conviction under both the


     4
       Knox was sentenced to life imprisonment on the CCE count, and he received
concurrent sentences of various terms on his remaining convictions. The district
court initially also sentenced Knox to a concurrent 240-month sentence for the
conspiracy count, but specifically rescinded the sentence because the conspiracy
was a lesser included offense of the CCE.

                                       4
conspiracy and the CCE statutes is unconstitutional where the

alleged CCE is the same enterprise as the conspiracy. See Rutledge

v. United States, 116 S. Ct. 1241, 1247 (1996); Fields, 72 F.3d at

1209-10.     Because we agree that the alleged CCE is the same

enterprise as the conspiracy, this Court vacates Knox's conviction

for drug conspiracy under count one of the indictment.5                      See

Fields, 72 F.3d at 1209-10 (vacating drug conspiracy conviction

when defendant unconstitutionally convicted of both drug conspiracy

and engaging in a CCE).

      Despite vacating Knox's drug conspiracy conviction, it is not

necessary to remand this case for resentencing.             Where it is clear

that the drug conspiracy conviction did not lead the district court

to impose a harsher sentence on Knox for engaging in a CCE than it

would have in the absence of the drug conspiracy conviction, there

is no need to remand for resentencing.             See id. at 1210.       Here,

Knox has not even been sentenced for the conspiracy conviction.

Clearly, the conspiracy conviction did not affect Knox's sentence

for the CCE conviction.



                         III.    EVIDENTIARY ISSUES

      "Evaluating the admissibility of evidence is a matter within

the sound discretion of the district court."                United States v.

       5
         Knox contends that his CCE conviction should also be vacated because
evidence introduced to prove Knox's participation in the conspiracy was
irrelevant to Knox's engagement in the CCE and was extremely prejudicial to Knox.
This contention is absurd. Evidence relevant to proving Knox's participation in
the conspiracy clearly is relevant to proving Knox's engagement in the CCE
because the conspiracy, as a lesser included offense of the CCE, comprises the
same enterprise as the CCE. See United States v. Fields, 72 F.3d 1200, 1209-10
(5th Cir.), cert. denied, 117 S. Ct. 48 (1996).

                                       5
Sparks, 2 F.3d 574, 582 (5th Cir. 1993).                  Accordingly, when a

defendant properly objects to the admission of evidence, the

district court's decision to admit such evidence is reviewed for an

abuse of discretion.          See, e.g., United States v. Bermea, 30 F.3d

1539, 1574 (5th Cir. 1994); Wilson v. Zapata Off-Shore Co., 939

F.2d 260, 272 (5th Cir. 1991).



A.    Knox's Possession of Firearms

      Knox contends that the district court abused its discretion in

allowing the government to introduce evidence that he possessed

firearms.      This Circuit has explicitly "recognized that firearms

are   'tools    of    the   trade'    of   those    engaged    in   illegal    drug

activities and are highly probative in proving criminal intent."

United States v. Martinez, 808 F.2d 1050, 1057 (5th Cir. 1987); see

also United States v. Beverly, 921 F.2d 559, 562 (5th Cir. 1991)

("[t]here is also no doubt that firearms are drug traffickers'

tools of trade"). Accordingly, we find that the district court did

not abuse its discretion in admitting this evidence.



B.    Exhibit 26--Bag of Crack Cocaine

      Knox     also   contends    that     the   district     court   abused   its

discretion in admitting a bag of crack cocaine--exhibit 26--because

the government failed to establish the chain of custody with

respect to the bag.            Two government witnesses, Captain Eddie

McCullough      and   Agent    Jeff   Palmer,      each   testified    that    they

delivered the bag of cocaine directly to the crime lab.                   Palmer


                                           6
testified that McCullough delivered the bag directly to Palmer, and

that McCullough was mistaken when he testified that he delivered

the bag directly to the crime lab.                    Knox contends that this

contradictory testimony renders the bag of cocaine inadmissible.

We disagree.

      As this Circuit has explained, a "break in the chain of

custody     simply   goes    to   the   weight   of    the   evidence,    not    its

admissibility."      Sparks, 2 F.3d at 582; see also Bermea, 30 F.3d at

1574.     Accordingly, even if the apparent contradiction between

Palmer's and McCullough's testimonies supports an inference of a

break in the chain of custody--a proposition we doubt--the district

court   did   not    abuse   its   discretion     in    admitting   the    bag    of

cocaine.6



C.    Exhibit 31--Tire Town, Inc.'s Business Records

      Both Knox and Dixon contend that the district court abused its

discretion in admitting pager-rental records of Tire Town, Inc.

During cross-examination, Tire Town's owner conceded that he did

not personally create the records and that he did not personally

know whether the records were true or accurate.               Tire Town's owner


        6
          Knox also argues that the district court abused its discretion by
admitting exhibit 32--a different bag of cocaine confiscated from Knox--because
of a break in the chain of custody.       Knox relies on the admission by two
witnesses in the chain of custody that they never initialed the bag of cocaine
and thus could not be one hundred percent positive that the substance in the bag
was, in fact, the substance confiscated from Knox. Each witness did, however,
testify from whom they received the bag and to whom they provided the bag, and
established their respective links in the chain of custody. Accordingly, the
lack of initials does not render the bag of cocaine inadmissible. See United
States v. Sparks, 2 F.3d 574, 581-82 (5th Cir. 1993) (district court did not
abuse discretion by admitting into evidence two bottles of crack despite
officer's testimony that he never initialed the bottles).

                                         7
did, however, substantiate that the records were business records

within the definition of Federal Rule of Evidence 803(6) and

testified that he relied on the accuracy of these records in the

ordinary course of business.           This Court has held that

     [a]ny person in a position to attest to the authenticity
     of certain records is competent to lay the foundation for
     the admissibility of the records; he need not have been
     the preparer of the record, nor must he personally attest
     to the accuracy of the information contained in the
     records.

Rosenberg    v.    Collins,     624    F.2d    659,   665   (5th   Cir.   1980).

Accordingly, the district court did not abuse its discretion in

admitting Tire Town's business records.               See Bermea, 30 F.3d at

1574 (holding that the district court not abuse its discretion by

admitting records under Fed. R. Evid. 803(6) even though the

custodian of records admitted "that she did not know whether the

records had been maintained in their original form or altered in

any way"); Wilson, 939 F.2d at 272 (holding that the district court

did not abuse its discretion by admitting records under Fed. R.

Evid. 803(6) despite the custodian of records's failure to testify

that the records were accurate).



D.   Tape Recorded Conversations Between Knox and Myrtle Bennett

     Both Knox and Dixon contend that the district court abused its

discretion in admitting tape recordings made of telephone calls

between     Knox   and    Myrtle      Bennett,    a   previously   cooperative

government informant, while arranging a controlled drug sale.

Appellants     argue     that   the     tape     recorded   conversations   are

inadmissible hearsay and, because Bennett refused to testify during

                                         8
trial, that the district court's admission of the tape recordings

violated their Sixth Amendment right to confront Bennett.                     We

disagree.

       We first point out that neither Knox's nor Bennett's recorded

statements are inadmissible hearsay.             Knox's recorded statements

are not hearsay because they constitute party admissions under

Federal Rule of Evidence 801(d)(2)(A).                See United States v.

Cheramie, 51 F.3d 538, 541 (5th Cir. 1995); United States v.

Gutierrez-Chavez, 842 F.2d 77, 81 (5th Cir. 1988).                    Bennett's

recorded statements, rather than offered to prove their truth, are

admissible to prove that they were uttered, and thus do not

constitute hearsay.7         See Gutierrez-Chavez, 842 F.2d at 81.

       With respect to appellants' Sixth Amendment concerns, this

Court recently held that tape recordings made of conversations

between an unavailable informant8 and a defendant are admissible

and do not violate the Sixth Amendment confrontation clause if the

tapes are supported by adequate indicia of reliability.                      See

Cheramie, 51 F.3d at 540-41; Gutierrez-Chavez, 842 F.2d at 81.                In

this       case,   the   government   provided   adequate   indicia    of   each

recording's reliability. First, Agent Rod Waller was present while

the conversations between Bennett and Knox occurred.                    Second,



      7
        Even if Bennett's recorded statements are hearsay, they are admissible
to put Knox's statements into context. See United States v. Cheramie, 51 F.3d
538, 541 (5th Cir. 1995); United States v. Gutierrez-Chavez, 842 F.2d 77, 81 (5th
Cir. 1988).
       8
        Because Bennett refused to testify on the basis of the Fifth Amendment,
she became "unavailable" within the definition of Federal Rule of Evidence
804(a).

                                         9
Waller was the person who dialed Knox's phone number for each

recorded phone call.      Third, Waller testified that each recording

contained the same statements that Bennett asserted during the

respective telephone conversations.            Fourth, Waller identified

Knox's voice as the voice engaging in dialogue with Bennett during

the recorded telephone conversations.           Fifth, a controlled drug

deal occurred in accordance with instructions provided by Knox to

Bennett during one of the recorded phone conversations.                   Under

these circumstances, we hold that the recordings are supported by

adequate indicia of reliability, see Cheramie, 51 F.3d at 541

(listing factors supporting a finding of adequate indicia of

reliability),   and   that   the   district    court     did   not    abuse    its

discretion in admitting the tapes into evidence.



E.   Drug Sale and Tape Recorded Conversation Between Dixon and

     Dennis Roberson

     Dixon   also    contends   that    the   district    court      abused    its

discretion in admitting evidence of a drug sale between Dixon and

Dennis   Roberson,    a   government    confidential     informant,      and    in

admitting a tape recording of the conversation between Dixon and

Roberson during the drug sale.          Dixon argues on appeal that the

government failed to prove that the drug sale was relevant to his

participation in the drug conspiracy, and thus inadmissible, and

that the tape recording constitutes inadmissible hearsay.                       We

disagree.

     Whether Dixon's sale of drugs to Roberson was an act in


                                       10
furtherance of the conspiracy charged in the indictment, rather

than an independent drug sale, is a question of fact for the jury.

See United States v. Morgan, 117 F.3d 849, 858 (5th Cir.) (holding

that "[w]hether the evidence shows one or multiple conspiracies is

a question of fact for the jury"), cert. denied, 66 U.S.L.W. 3355

(U.S. Nov. 17, 1997) (No. 97-6370).      The district court did not

abuse its discretion in admitting evidence of Dixon's drug sale to

Roberson.

     With respect to the tape recording's admissibility, Dixon's

recorded statements are admissible as a party admission under

Federal Rule of Evidence 801(d)(2)(A), and Roberson's recorded

statements, even if considered hearsay, are admissible to put

Dixon's statements into context.      See Cheramie, 51 F.3d at 541;

Gutierrez-Chavez, 842 F.2d at 81.     Accordingly, the district court

did not abuse its discretion by admitting the tape recording.



                   IV.   APPELLANTS' BRADY CLAIM

     Knox and Dixon both contend that the government violated Brady

v. Maryland, 373 U.S. 83 (1963), by failing to produce Knox's

financial records and car titles, which the government seized while

executing a search warrant.   Knox argues that such evidence would

have helped him contest the government's allegation that Knox

derived substantial income from the sale of drugs, which is an

essential element of his CCE conviction.      Dixon argues that such

evidence would have demonstrated his legitimate ownership of a

Suzuki Samurai Sidekick and that he would thus be exonerated.


                                 11
     This Court reviews the district court's Brady determination de

novo.    See United States v. Green, 46 F.3d 461, 464 (5th Cir.

1995).     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, 373 U.S. at 87; United States v. Aubin, 87 F.3d 141, 148

(5th Cir. 1996), cert. denied, 117 S. Ct. 965 (1997).                However,

Brady    does   not   obligate   the   government    "to   produce    for   [a

defendant] evidence or information already known to him, or that he

could have obtained from other sources by exercising reasonable

diligence."     Brown v. Cain, 104 F.3d 744, 750 (5th Cir.), cert.

denied, 117 S. Ct. 1489 (1997).         Accordingly, to prevail in their

Brady claim, Knox and Dixon must show that the allegedly suppressed

information was not available to them through due diligence.                See

Aubin, 87 F.3d at 149.

     Neither Knox nor Dixon has demonstrated that the information

contained in Knox's financial records and car titles was not

available to him through his own due diligence.9           Knox asserts that

the seized evidence contained information about the income he

received from buying and selling used cars.           This is information

about which Knox should have known, and Knox has not shown that

this information was not available to him through due diligence.

Dixon asserts that the suppressed evidence contained information


     9
        Neither Knox nor Dixon even argues that he could not have obtained the
information through his own due diligence.

                                       12
about   his    ownership    of   the   Suzuki.   As   with     Knox,   this   is

information about which Dixon should have known, and Dixon has not

shown that this information was not available to him through due

diligence.      Accordingly, the government did not violate Brady.



                     V.    SUFFICIENCY OF THE EVIDENCE

     When reviewing a claim for insufficiency of the evidence, this

Court must determine whether, based on the totality of the evidence

presented at trial, a rational jury could have found that the

government proved the essential elements of the crimes charged

beyond a reasonable doubt.         See United States v. Davis, 61 F.3d

291, 296 (5th Cir. 1995).         While making this determination, this

Court must consider the evidence in the light most favorable to the

government, including all reasonable inferences that may be drawn

therefrom.      See United States v. Bermea, 30 F.3d 1539, 1551 (5th

Cir. 1994).



A.   The CCE Conviction

     Knox challenges the sufficiency of the evidence to support his

CCE conviction.      A person engages in a CCE if:

     (1) he violates any provision of                 [title    21]    the
     punishment for which is a felony, and

     (2) such violation is part of a continuing series of
     violations of [title 21] --

              (A) which are undertaken by such persons in
              concert with five or more other persons with
              respect to whom such person occupies a
              position of organizer, a supervisory position,
              or any other position of management, and


                                       13
           (B) from which such person obtains substantial
           income or resources.

21 U.S.C. § 848(c).

     The testimony at trial established that Knox was the leader of

a large crack and powder cocaine distribution conspiracy that

operated between 1992 and 1995, employed more than five people at

any given time, and made significant sums of money from the

conspiracy.   While much of the testimony implicating Knox was from

coconspirators who accepted plea bargains from the government,

"[i]t is well-settled that credibility determinations are the sole

province of the jury."      Davis, 61 F.3d at 297.      Indeed, "'[a]

conviction may rest solely on the uncorroborated testimony of one

accomplice if the testimony is not insubstantial on its face.'"

Id. (quoting United States v. Gibson, 55 F.3d 173, 181 (5th Cir.

1995)).   In this case, each of the witnesses testified to numerous

drug runs and drug deals.      Moreover, much of the testimony was

corroborated by undercover agents, government informants, and taped

telephone conversations.    The bountiful evidence describing Knox's

role in the conspiracy and the substantial income he derived

therefrom was sufficient to support his CCE conviction.



B.   Use of a Communication Facility

     Knox also challenges the sufficiency of the evidence to

support two of his convictions under 21 U.S.C. § 843(b) for using

a communication facility to facilitate the attempted distribution

of cocaine.     Knox contends that his convictions under counts

twenty-two    and   twenty-three   are   improper   because   no   drug

                                   14
transactions occurred as a result of either of the predicate act

telephone calls.          We disagree.

     To     secure    a    conviction    under      21   U.S.C.   §     843(b),   the

government     must       establish   that    the    defendant    knowingly       and

intentionally used a telephone to facilitate the commission of a

narcotics offense.          See United States v. Gonzalez-Rodriguez, 966

F.2d 918, 921 (5th Cir. 1992).

     In order to establish the facilitation element, the
     Government must show that the telephone call comes within
     the common meaning of facilitate--to make easier or less
     difficult, or to assist or aid. It is sufficient if a
     defendant's use of a telephone to facilitate the
     possession or distribution of controlled substances
     facilitates either his own or another person's possession
     or distribution.

Id. (quotations and citations omitted).               Because counts twenty-two

and twenty-three of the indictment specifically charge Knox with

using   a   communication       facility      to    facilitate    the    "attempted

distribution" of cocaine, the government only is required to

establish that Knox used the telephone to facilitate an attempt to

distribute drugs.         See United States v. Rey, 641 F.2d 222, 224 n.6

(5th Cir. Unit A Mar. 1981) ("[w]hen the underlying offense is an

inchoate one such as attempt or conspiracy, then the attempt or

conspiracy is all that must be shown . . . , and it is not

necessary to show completion of the objective of that inchoate

crime").

     In this case, we conclude that the evidence is sufficient to

support Knox's convictions under both counts twenty-two and twenty-

three. During the first telephone call on February 10, 1995 (count

twenty-two), Wanda Henry, a government witness, asked Knox to sell

                                         15
her some drugs.   To complete the sale, Knox directed Henry to meet

him at a store at which he sold her drugs on the previous day.

Knox subsequently met Henry at the store, but did not sell her any

drugs.   Rather, and because he was concerned that he was being

followed, Knox directed Henry to page him twenty minutes after

leaving the store.        Henry subsequently left the store and paged

Knox approximately twenty minutes later.             Knox responded to the

page (count twenty-three) and directed Henry to meet him at a Wal-

Mart to complete the sale.       Knox, however, never showed up at the

Wal-Mart.   This evidence is sufficient for a reasonable jury to

determine that Knox twice attempted to sell drugs to Henry, and

that Knox used the telephone to facilitate each attempt.



C.    The Drug Conspiracy Conviction

      Dixon challenges the sufficiency of the evidence to support

his drug conspiracy conviction.             To support a drug conspiracy

conviction, the government must establish "(1) the existence of an

agreement between two or more persons to violate narcotics law; (2)

the defendant's knowledge of the agreement; and (3) the defendant's

voluntary participation in the agreement."               United States v.

Gonzalez, 76 F.3d 1339, 1346 (5th Cir. 1996).            "A jury may infer

the   elements   of   a   conspiracy    conviction    from   circumstantial

evidence: An agreement to violate narcotics laws may be inferred

from concert of action.          Knowledge of the conspiracy may be

inferred from a collection of circumstances."             United States v.

Leal, 74 F.3d 600, 606 (5th Cir. 1996) (quotations and citations


                                       16
omitted).    In addition, "[a]lthough mere presence at the scene of

the crime or close association with a coconspirator will not

support     an   inference   of   participation      in    a    conspiracy,   a

defendant's      voluntary   participation     may    be   inferred    from   a

development and a collocation of circumstances."               United States v.

Vergara, 687 F.2d 57, 61 (5th Cir. 1982) (quotations and citations

omitted).

      In this case, there is abundant evidence supporting the

existence of a drug conspiracy.        The case also teems with evidence

showing that Dixon knew of and voluntarily participated in the

conspiracy.      Several witnesses10 testified that Dixon worked in

Knox's organization, buying, delivering, and selling crack and

powder cocaine.     For example, Scott Riddle, one of Knox's cousins

and drug sellers, testified that Dixon sold crack cocaine at Knox's

house and that Dixon made trips to pick up cocaine for Knox.

Rhonda Simmons, a coconspirator, testified that Dixon delivered

crack cocaine for Knox.        James Rutherford testified that he had

dealt with Dixon when purchasing crack cocaine at Knox's house.

Virginia Cowan testified that she bought crack cocaine from Dixon

at Knox's house. Diane Graham, whose husband bought and sold drugs

for Knox, testified that Dixon worked for Knox.            In addition, Knox


     10
         Dixon argues that many of the witnesses who testified against him were
coconspirators who received plea bargains, whose testimony was not credible, and
some of whose testimony was not corroborated by non-coconspirators. As explained
above, however, "[i]t is well-settled that credibility determinations are the
sole province of the jury." United States v. Davis, 61 F.3d 291, 297 (5th Cir.
1995). Accordingly, "non-credibility is generally not a sound basis for alleging
insufficiency of the evidence; it is the jury's function to determine
credibility."    United States v. Payne, 99 F.3d 1273, 1278 (5th Cir. 1996)
(quotations and citations omitted).

                                      17
provided a pager to Dixon, and Dixon's license plate was affixed to

Knox's    car    when       two     of   Knox's     drug    runners      were   arrested.

Furthermore, Dixon traveled with Knox on at least one occasion to

Mississippi to pick up several ounces of cocaine. This evidence is

sufficient to support Dixon's conspiracy conviction.



                               VI.       SENTENCING ISSUES

     Knox and Dixon appeal the sentences imposed by the district

court under the United States Sentencing Guidelines.                            This Court

reviews    the    district          court's    application         of     the   Sentencing

Guidelines de novo and the district court's factual findings for

clear error.     See United States v. West, 58 F.3d 133, 137 (5th Cir.

1995).    "A factual finding is not clearly erroneous as long as it

is plausible in light of the record as a whole."                         United States v.

Thomas,    12    F.3d       1350,    1368    (5th    Cir.    1994)       (quotations   and

citations omitted).



A.   Firearm Enhancement

     Knox and Dixon both contend that the district court's two-

level enhancement for possession or use of a dangerous weapon,

under    U.S.S.G.       §    2D1.1(b)(1),          was   clearly        erroneous.     The

enhancement is appropriate if a firearm "was possessed during the

course of manufacturing, importing, exporting, or trafficking in

narcotics, including attempting or conspiring to do so."                             United

States v. Gaytan, 74 F.3d 545, 559 (5th Cir.), cert. denied, 117 S.

Ct. 77, and cert. denied, 117 S. Ct. 506 (1996).                            The district


                                              18
court's decision to enhance the sentence level for firearms is a

factual determination reviewed for clear error, see United States

v. Brown, 985 F.2d 766, 769 (5th Cir. 1993), and may be supported

by    "any    relevant      evidence     that   has    sufficient     indicia     of

reliability to support its probable accuracy."                   United States v.

Buchanan,      70   F.3d    818,   828   (5th   Cir.    1995)    (quotations     and

citations omitted).         However, the applicability of the enhancement

must be proved by a preponderance of the evidence.                  United States

v. Devine, 934 F.2d 1325, 1339 (5th Cir. 1991).

      In     this   case,   the    evidence     clearly   indicates       that   Knox

possessed firearms during the course of the CCE.                   Virginia Crum,

Knox's former girlfriend, testified that Knox traveled to Memphis

two to three times each week to pick up cocaine and that Knox

carried a gun on nearly every trip.              In addition, both Larry Cox,

one of Knox's coconspirators, and Diane Graham, the wife of one of

Knox's coconspirators, testified that guns were kept at Knox's

house.       Furthermore, Mike Edlemon, a government investigator,

testified that he saw firearms carried by Knox's coconspirators

while they were selling drugs to customers in Knox's driveway.

      The evidence also clearly indicates that the district court

did    not    err    in    enhancing     Dixon's      sentence    under    U.S.S.G.

§ 2D1.1(b)(1).         A defendant's sentence may properly be enhanced

under U.S.S.G. § 2D1.1(b)(1) if the possession of a firearm by one

of his coconspirators was reasonably foreseeable.                  See Gaytan, 74

F.3d at 559.        This Court has explained that "[o]rdinarily, one co-

conspirator's use of a firearm will be foreseeable because firearms


                                          19
are 'tools of the trade' in drug conspiracies."               United States v.

Mergerson, 4 F.3d 337, 350 (5th Cir. 1993) (citation omitted).                  In

this case, the evidence demonstrates that Dixon distributed drugs

at Knox's house, and that firearms were kept and carried in Knox's

house in connection with drug activities.                  In addition, Dixon

traveled to Memphis with Knox on at least one occasion to pick up

drugs, and Knox carried firearms on nearly every trip to Memphis.



B.   Constitutionality of 21 U.S.C. § 860(a)

     Knox argues that 21 U.S.C. § 860(a) is an unconstitutional

extension   of   Congress's   regulatory          powers   under   the   Commerce

Clause, and that his convictions under § 860(a) should thus be

vacated.    This Court, however, has already rejected this argument.

See United States v. Clark, 67 F.3d 1154, 1165-66 (5th Cir. 1995),

vacated in part on other grounds sub nom. Coffman v. United States,

117 S. Ct. 40 (1996); see also United States v. Allen, 106 F.3d

695, 701 (6th Cir.) (agreeing with Clark that 21 U.S.C. § 860 is

within Congress's commerce power), cert. denied, 117 S. Ct. 2467

(1997); United States v. Lopez, 2 F.3d 1342, 1366 n.50 (5th Cir.

1993) (indicating that 21 U.S.C. § 860 is based on the "federal

authority    over   intrastate   as        well    as   interstate       narcotics

trafficking"), aff'd, 514 U.S. 549 (1995).



                          VII.   OTHER ISSUES

     Knox and Dixon raise numerous other issues in this appeal.

Knox contends that the district court erred by (1) quashing his


                                      20
subpoena to Probation Officer Darrell Doss, (2) limiting his cross-

examination of Barry Cook and Barry Cox, (3) seating Peggy Dudley

as a juror, (4) refusing to give one of Knox's proposed jury

instructions, (5) merging jury instructions for different counts of

the indictment, (6) refusing to grant a mistrial because Myrtle

Bennett pleaded the Fifth Amendment while on the witness stand, (7)

refusing    to   grant   a     mistrial    because     of   the   government's

introduction of improper and prejudicial evidence, (8) refusing to

grant Knox's motion for a new trial, (9) refusing to grant Knox's

motion to suppress evidence concerning his possession of firearms,

(10) admitting various testimony, (11) refusing to require the

government to identify a non-testifying confidential informant,

(12) attributing 15.65 kilograms of crack cocaine to Knox for

sentencing purposes, and (13) refusing to find that Knox was

subject to sentencing entrapment for selling drugs within 1000 feet

of a high school. Dixon incorporates each of Knox's allegations of

error by reference and further contends that the district court

erred by (1) refusing to grant Dixon's motion for a new trial, (2)

refusing to give Dixon's proposed jury instructions, (3) limiting

Dixon's    objections,   (4)    attributing      11.79    kilograms    of   crack

cocaine to Dixon for sentencing purposes, (5) refusing to grant

Dixon a downward departure as a minimal or minor participant, (6)

refusing    to   grant   Dixon    a   downward     departure      because    his

coconspirators,    who   cooperated       with   the     government,   received

lighter sentences, (7) refusing to reduce Dixon's offense level

based on Dixon's acceptance of responsibility, and (8) refusing to


                                      21
hold that the disparity between sentences for crack cocaine and

powder cocaine is unconstitutional.        After carefully reviewing the

record, we determine that each of the arguments is meritless under

the   established   law   of   this    Circuit   and   does   not   require

discussion.   See United States v. Allen, 76 F.3d 1348, 1357 (5th

Cir.) (summarily affirming district court and refusing to discuss

meritless arguments), cert. denied, 117 S. Ct. 121 (1996).



                           VIII.   CONCLUSION

      For the foregoing reasons, we VACATE Stanley Knox's conviction

on count one (conspiracy), and AFFIRM the district court in all

other respects.

      VACATED IN PART AND AFFIRMED IN PART.




                                      22