U.S. v. Coveney ( 1993 )


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  •                    UNITED STATES COURT OF APPEALS
    FOR THE FIFTH CIRCUIT
    _________________________________________
    No. 92-7306
    _________________________________________
    UNITED STATES OF AMERICA,
    Plaintiff-Appellee,
    VERSUS
    JOSEPH T. COVENEY and
    FRANCIS M. COVENEY,
    Defendants-Appellants.
    _________________________________________________________________
    Appeals from the United States District Court
    for the Southern District of Texas
    _________________________________________________________________
    (July 6, 1993)
    Before POLITZ, Chief Judge, REAVLEY, and BARKSDALE, Circuit Judges.
    BARKSDALE, Circuit Judge:
    This tax fraud appeal turns on a fairly routine, straight-
    forward and simple issue, sufficiency of the evidence; but, it is
    complicated greatly by the Government's failure to carry the day on
    its global theory for conviction, by the concomitant difficulty of
    instead reviewing its proof on a count-by-count basis, and by the
    incomplete state of the record on appeal, due to the Government's
    failure to include the exhibits.         Also in issue is the possible
    prejudice    suffered    by   Joseph   and   Francis   Coveney   when   the
    Government called two of their former attorneys to testify, one
    invoking the attorney-client privilege 20 times.              Each of the
    Coveneys was convicted of aiding and assisting in the preparation
    of 29 false income tax returns, and conspiracy to commit those
    offenses.      Finding the evidence on conspiracy and 16 of the aiding
    and assisting counts sufficient, and no reversible error arising
    out of    the    attorneys'      testimony,   we    AFFIRM    on      those   counts.
    However, because the evidence, as contained in the incomplete
    record    on    appeal,   is   insufficient    for    13   of    the    aiding   and
    assisting counts, we REVERSE those convictions, and REMAND for
    resentencing.
    I.
    In     1983,     brothers     Francis    and    Joseph        Coveney    formed
    Temperature Technology, Inc. (TTI), a Houston-based company which
    installed energy management systems (EMS) in commercial buildings.
    (An EMS is an energy control unit which is connected to an item of
    equipment and is designed to reduce energy use by causing the item
    to cycle on and off.)             TTI became a recommended installation
    company for the OEC Leasing Corporation (OEC), as part of its
    promotion of a tax shelter program.           OEC purchased EMS units from
    Franklin New Energy Corporation (FNEC).              (The EMS was driven by a
    microprocessing panel manufactured by Eckard Engineering.)                       OEC
    leased the EMS units to investors, who in turn contracted with an
    installation company to install and service the systems.                         The
    installation company was responsible for locating an "end-user" for
    each system -- a commercial building where the unit would be
    installed.      If the EMS saved energy costs, those savings would be
    shared    by    the   end-user,    the   investor,     and      the    installation
    2
    company.1   In addition to these shared savings, the installation
    company received an installation fee from the investor, the end-
    user reaped the benefits from a unit it was not required to
    purchase or maintain, and the investor was entitled on his income
    tax return to an investment tax credit and deductions for, among
    other things, depreciation and installation.
    Almost immediately, TTI began to experience technical problems
    with the OEC units, which were apparently caused by the FNEC/Eckard
    microprocessors.   TTI attempted to correct the problem, and, in
    May, hired John Millar as national service manager.         Millar's
    technical staff made a number of changes in the microprocessing
    chips and eventually resolved the problem.
    At approximately the same time, Francis Coveney directed
    Millar to begin developing a solar-powered EMS. Millar immediately
    developed a prototype using the FNEC/Eckard unit.     Also working
    with a National Enco brand EMS, which he considered superior, he
    converted the National Enco eight and 16-channel units to solar
    power, but was unable to do so with the 24-channel unit.2   This 24-
    channel unit had a remote monitoring capability, which allowed the
    1
    The end-user retained 50% of the savings. It was billed by
    the installation company for the other 50%.    The testimony was
    inconsistent on the further division of the savings.         Some
    witnesses testified that the installation company kept 15% of the
    savings and forwarded the remaining 35% to the investor; others,
    that the installation company kept only 15% of the amount it
    received from the end-user, leaving 85% of that amount for the
    investor.
    2
    Each channel represents an individual switching device which
    will control one piece of equipment. An eight-channel unit, for
    example, can control eight different pieces of equipment within a
    building.
    3
    unit   to   be   accessed   and   programmed   through   telephone   lines.
    Without such remote monitoring, the unit must be serviced on site.
    Although the eight and 16-channel National Enco units did not have
    remote monitoring, the FNEC/Eckard units did.             But, Millar was
    never able to convert those units to solar power while maintaining
    the remote monitoring feature.
    Francis Coveney had directed development of a solar-powered
    EMS with an eye toward a new venture.          In August 1984, he formed
    Enersolex, a San Antonio-based company which marketed a tax shelter
    similar to that offered by OEC. In the Enersolex program, however,
    investors purchased, rather than leased, their EMS units, and the
    units were to be solar, rather than electrically, powered.            There
    was no added benefit for the installation company or the end-user;
    but, because the unit was solar powered, the investor was entitled
    to a 15% energy tax credit, in addition to the investment tax
    credit and deductions available to an OEC investor.
    While Millar was still developing the prototypes, financial
    planners expressed an interest in marketing the solar-powered EMS.
    TTI retained Raymond Merry, an energy consultant, to analyze the
    feasibility of such a system.3            He prepared a report on the
    capabilities of the proposed EMS, but noted carefully that it had
    not yet been assembled. And, Enersolex retained Craig Welscher, an
    attorney, to prepare a tax opinion on the proposed solar unit.
    3
    Merry testified that he wasn't sure who intended to use his
    report. He was retained by TTI and conducted the evaluation at its
    offices, but he understood that the device was being manufactured
    by Enersolex.
    4
    Moreover, Francis Coveney retained CPA John Pearl to prepare an
    analysis of the estimated tax write-off and cash benefits of the
    Enersolex system.           The documents became part of the Enersolex
    promotional package, which was distributed to financial planners.
    A videotape featuring the National Enco prototype was prepared, as
    well       as   a    slideshow        featuring        the     FNEC/Eckard      model.
    Representatives of both Enersolex and TTI visited a number of
    cities, promoting and demonstrating the solar-powered EMS.                        TTI,
    still installing and servicing OEC units, was also a recommended
    installation company for the new Enersolex program.
    Meanwhile, a New Jersey-based Internal Revenue Service task
    force, investigating potentially abusive tax shelters, had heard of
    the Enersolex promotion. In October 1984, two IRS agents travelled
    to   San    Antonio       and   met   with   Francis     Coveney,    his   attorney,
    accountant, and the Enersolex marketing director.                   Francis Coveney
    demonstrated        the    Enersolex    unit     and   asked    whether    he   should
    continue to sell it.            The agents explained that they were not then
    in a position to answer that question, but would advise him if they
    determined that the tax shelter was abusive. The investigation was
    transferred to Texas before that determination was made.
    By the end of 1984, approximately 115 Enersolex units had been
    sold, most in the last two weeks of December.4                   A majority of the
    Enersolex investors selected TTI as their installation company.
    Each investor received a letter from Joseph Coveney, thanking them
    4
    Testimony regarding the purchase price ranged from $32,500 to
    $52,000.
    5
    for selecting TTI and telling them that information about their
    end-user location would be forthcoming.        A second letter told them
    when and   where   their   unit   had   been   installed;   most   included
    photographs of the unit and/or the end-user site.
    Although TTI had represented that it had secured numerous end-
    user locations for the Enersolex units, this was apparently not the
    case.   Because most investors intended to file their income tax
    returns on April 15, see infra at 7 and note 20, the pressure was
    on to install these units in the first few months of 1985.              By
    letter in February 1985, TTI informed OEC investors for whom it was
    an installer that it would no longer service units through the OEC
    program, explaining that it was becoming increasingly difficult to
    obtain parts for repair and maintenance of those units. Therefore,
    the units would be removed, and each OEC investor was to inform TTI
    where his unit should be sent.      Within days of that notice to OEC
    investors, Enersolex investors began to receive letters from TTI
    about their end-user sites.        Many of the Enersolex units were
    installed in the same locations from which OEC units had been
    removed. There was extensive testimony at trial regarding specific
    locations. In some cases, the OEC unit was physically removed, and
    an Enersolex unit installed in its place.        In most cases, however,
    the OEC unit was simply converted to solar power.5            Among other
    5
    TTI was responsible for locating end-users, and Joseph Coveney
    testified that he believed the locations belonged to TTI. Not so
    for the units installed there. The service agreement between TTI
    and the OEC lessees stated that "[t]he lessee shall retain full
    legal possession of the system notwithstanding delivery of the
    service company". Indeed, Joseph Coveney admitted that the "EMS
    unit on the wall ... was the OEC lessee['s]. That was his."
    6
    things, internal wiring was changed, and the unit was connected to
    solar panels which were installed on the roof.        The brown OEC units
    were painted blue and an Enersolex sticker added.         Each Enersolex
    investor was notified of his unit's installation; and, on their
    1984 tax returns, most claimed a 15% energy tax credit, a 10%
    investment   tax   credit,   and   deductions   for    depreciation    and
    installation (tax benefits).
    Picking up on the earlier investigation, IRS agents in Texas
    met with representatives of Enersolex, including Francis and Joseph
    Coveney, on April 3 and 22, 1985.       That July, they referred the
    case to the Criminal Investigation Division of the IRS.               First
    indicted in April 1991, Francis and Joseph Coveney, Enersolex
    accountant John Pearl, and Gerald Ramsey, TTI's vice-president of
    operations, were charged in a superseding indictment in October
    1991 with conspiracy to aid and assist in the preparation of false
    income tax returns (count 1).       Pearl and the Coveneys were also
    charged in 30 counts with aiding and assisting in the preparation
    of false income tax returns (counts 2-31).      And, Ramsey was charged
    in two additional substantive counts (counts 32 and 33).
    In presenting its evidence, the Government called two of the
    defendants' former attorneys as witnesses, as discussed in part
    II.A. The defendants unsuccessfully moved for a mistrial, premised
    on the repeated invocation of the attorney-client privilege. Their
    motions for judgments of acquittal upon the completion of the
    Government's case-in-chief were taken under advisement, re-urged at
    the close of all the evidence, and ultimately denied.
    7
    Before the case went to the jury, the Government dismissed one
    substantive      count    against       the    Coveneys       and   Pearl   (count    4).
    Francis and Joseph Coveney were each found guilty on the conspiracy
    count and the remaining 29 substantive counts against them; Pearl
    was acquitted; and Ramsey was found guilty of conspiracy, but
    acquitted on his two substantive counts.                  On the conspiracy count,
    Francis Coveney was fined $3,500 and Joseph Coveney, $2,750; and
    each was    sentenced         to   30   concurrent       prison     terms   --    Francis
    Coveney's being 18 months each, and Joseph Coveney's, 16 months
    each.    Only the Coveneys are before us on appeal.
    II.
    The Coveneys challenge the denial of a mistrial and the
    sufficiency of the evidence.6
    A.
    The grant or denial of a mistrial is, of course, a matter left
    to the discretion of the district court.                  We review only for abuse
    of that discretion, United States v. Burke, 
    496 F.2d 373
    (5th
    Cir.), cert. denied, 
    419 U.S. 966
    (1974), and, as explained below,
    find none here.
    After the Government subpoenaed three of the defendants'
    former   attorneys       to    testify,       the     defendants    moved    to   quash,
    asserting the attorney-client privilege. The district court denied
    the   motions,    but    conducted       a     voir    dire    of   the   witnesses    to
    6
    Francis and Joseph Coveney filed virtually identical briefs.
    Therefore, we analyze their cases individually only when
    considering the sufficiency of the evidence against them.
    8
    establish the acceptable boundaries for their testimony.     Two of
    the three, Robert Fee and Craig Welscher, were called to testify.
    Fee was called as the Government's first witness.     After he
    twice invoked the attorney-client privilege, the defendants moved
    for a mistrial.   The motion was denied, but the jury was given a
    limiting instruction.7   When Fee invoked the privilege a third
    time, the defendants unsuccessfully re-urged their motion.
    After a three-day weekend, the trial resumed; and Welscher was
    called as the third witness that day.   During his testimony, the
    7
    The district court instructed the jury as follows:
    You have heard this attorney do what is called
    invoking a privilege, an attorney-client privilege
    in terms of him not testifying about things that he
    may have been told or discussed or saw or heard or
    observed having to do with his representation of
    one or more of the defendants in this case. Please
    understand that that is a completely acceptable
    practice in the law. Any time anyone goes to an
    attorney to discuss anything, no matter how
    frivolous, they are entitled to assume that that is
    going to be held in confidence, and any attorney
    who receives such information may not divulge it to
    third persons even in open court without the
    express permission of his client. There is nothing
    sinister nor inappropriate nor illegal nor evil
    about invoking the attorney-client privilege. It
    is simply, simply put from our childhood, "I told
    you a secret and I expect you to keep it," nothing
    more than that.
    Please, do not engage in any speculation or
    conjecture as to what communications, if any, might
    have transpired. Do not engage in any imagination
    as to what questions or answers might have flown
    from any answer but the one that counsel gave in
    regard to that specific question.
    9
    attorney-client privilege was invoked 20 times, either by him or
    one of the defendants.8
    The Coveneys contend that the Government knew Fee and Welscher
    would   assert   the   attorney-client   privilege,   and   committed
    reversible error by calling them to testify.     They maintain that
    continued invocation of the privilege, highlighted by the district
    court's "ineffective" limiting instructions,9 cast suspicion on
    them and caused the jury to believe that they were "keeping
    secrets".
    8
    When the Government asked Welscher what materials he relied on
    in preparing his tax opinion, the defense objected, and the court
    gave the following instruction to Welscher and the jury:
    [W]hen you answer this question, I want you to feel
    free to refer to any treatises, law, or other
    generally recognized publications that you would of
    necessity rely on in formulating any such opinion.
    They are clearly within the public domain and don't
    refer to these defendants. To the extent that they
    gave    you   any    documentation,    information,
    representation, or other information that you
    relied on to formulate the report that indeed you
    incorporated into the report which was subsequently
    published, you may, of course, reveal all of that
    as well and of necessity must.
    Anything that was revealed to you that is not
    made a part of the report clearly falls within the
    attorney-client privilege, and I do not want that
    waived inadvertently. So I'm asking you to give a
    complete answer based on the limitations I have
    expressed.
    Ladies and gentlemen, by admonishing this
    witness along those lines, please understand that I
    am not suggesting to you that there is any secret
    information out there or anything along those
    lines.   I am simply requiring this lawyer to do
    that which he must, which is to observe the
    attorney-client privilege, and that's all.
    9
    See notes 7 and 
    8, supra
    .
    10
    Both the Supreme Court, see Namet v. United States, 
    373 U.S. 179
    (1963), and our court, see San Fratello v. United States, 
    340 F.2d 560
    (5th Cir. 1965), have recognized that forced invocation of
    a testimonial privilege might, in some cases, so prejudice the
    defendant as to warrant reversal. Having reviewed the testimony of
    both attorneys, we are convinced that this is not such a case.
    In San Fratello, this court found reversible error where the
    Government called the defendant's wife to testify after she had
    made it known to the court that she would refuse on the ground that
    her testimony might incriminate her.     When called, she answered
    questions about her name and address, but, invoking the privilege,
    refused to answer further.   The district court instructed the jury
    that "[t]he reluctance of a witness to incriminate herself may not
    be used to incriminate others", San 
    Fratello, 340 F.2d at 563-64
    ,
    and emphasized that no unfavorable inferences could be drawn
    against the defendant because of his wife's refusal to testify.
    This court concluded, however, that "[t]he prosecution could have
    had no purpose in calling this witness and requiring her to claim
    her privilege in the presence of the jury other than to use her
    conduct as an incriminating circumstance against her 
    husband". 340 F.2d at 567
    .   Even the limiting instruction did not cure the error,
    because it was "more than reasonably probable" that the wife's
    refusal to testify prejudiced her husband.    
    Id. The case
    before us, however, is much more closely analogous to
    Namet.   Unlike the wife who refused to testify in San Fratello, Fee
    and Welscher "possessed nonprivileged information that could be
    11
    used to corroborate the Government's case".       
    Namet, 373 U.S. at 188
    .    Fee's testimony was very brief.    He testified that he had
    been retained by TTI in early 1984, but refused to elaborate.10
    Both of the questions he refused to answer11 were quite similar to
    questions he had answered at voir dire.12     They did not touch on
    sensitive areas or critical issues in the case.    His testimony was
    of no particular import to the Government's case; but, on the other
    hand, his refusal to answer could not have raised any suspicion
    that he was "keeping a secret" for the Coveneys.
    Conversely, Welscher was an important substantive witness. As
    author of the tax opinion used in the Enersolex promotion, his
    testimony was critical to the Government's case.        Although he
    claimed the privilege 20 times, this number must be viewed in the
    context of his entire testimony and the substance of the questions.
    First, his testimony was significantly longer than that of any
    other witness in the 12-day trial.     As in Namet, "[t]he effect of
    these questions was minimized by [Welscher's] lengthy nonprivileged
    
    testimony". 373 U.S. at 189
    .    Second, the privilege was often
    10
    The Coveneys contend that Fee was called only to establish
    that they refused to follow his legal advice. At his voir dire,
    the Government did explain that it wished to call him for that
    purpose. The court made it clear, however, that such testimony
    would not be allowed; and the Government did not inquire about the
    substance of his legal advice.
    11
    As noted, Fee invoked the attorney-client privilege three
    times, but twice it was in response to the same question.
    12
    For example, at voir dire, Fee was asked, "You were hired ...
    in 1984 to syndicate a tax opinion, weren't you?", to which he
    answered "Yes". When asked if he was hired because he was a tax
    specialist, he asserted the privilege.
    12
    asserted in response to questions which were not even slightly
    incriminating,    and   which   were    ultimately   answered   by   other
    witnesses.13   Some of the questions were inappropriate and intruded
    into privileged territory; but "[w]e cannot find that these few
    lapses, when viewed in the context of the entire trial, amounted to
    planned or deliberate attempts by the Government to make capital
    out of witnesses' refusals to testify."        
    Namet, 373 U.S. at 189
    .
    Moreover, any error was cured by the district court's limiting
    instructions. Although the instructions made reference to secrets,
    they also made it clear that a lawyer is duty-bound to invoke the
    privilege, and that its invocation should not be perceived as an
    effort to hide information from the jury.
    B.
    The Coveneys also contend that the evidence was insufficient to
    convict them for aiding and assisting in the preparation of false
    income tax returns, and conspiracy to do so.14 We view the evidence
    13
    Welscher asserted the privilege in response to questions
    about, inter alia, the nature of TTI's business, what TTI did
    before it began to install EMS units, and whether anyone had
    explained to him how an EMS worked.
    14
    The record on appeal reflects numerous acts by the Coveneys
    that are shabby business practices at best; criminal violations at
    worst. For example, the Enersolex promotional brochure touted the
    creation of a defense fund, through which Craig Welscher was to
    serve as counsel to any investor whose claims were challenged by
    the IRS. Welscher testified that no such fund existed. As another
    example, when IRS agents were scheduled to visit the Enersolex
    offices in San Antonio in October 1984 to see the solar-powered
    units, the Enersolex warehouse was empty. Therefore, approximately
    200 boxes, for OEC units, were moved from TTI's Houston warehouse,
    and "Enersolex" was stenciled on them. Steve Halliburton testified
    that most of the boxes were empty -- only about ten contained OEC
    EMS units.
    13
    supporting criminal convictions in the light most favorable to the
    verdict, and affirm if "any rational trier of fact could have found
    the essential elements of the offense beyond a reasonable doubt".
    United States v. Chaney, 
    964 F.2d 437
    , 448 (5th Cir. 1992).
    Of course, when multiple defendants are tried on a multi-count
    indictment, as here, the analysis is a lengthy one.           We must review
    each count separately as to each defendant.              Our review in this
    case, however, is atypical. Neither the evidence at trial, nor the
    briefs on appeal, have been presented in such a fashion.               Rather,
    the Government's theory has been a global one:            Enersolex marketed
    a solar-powered energy management system and promoted its potential
    tax benefits; Enersolex never created the system it marketed;
    therefore, investor/taxpayers who claimed the tax benefits which
    the defendants represented they were entitled to, filed returns
    which were, by definition, false; and, because the defendants knew
    that   the   investor/taxpayers     were     not   entitled   to   those    tax
    benefits,    they   aided   and   assisted   in    the   preparation   of   the
    investors' false returns. Under such a theory, the Government need
    only prove that the investors filed tax returns claiming tax
    benefits for a system which did not exist, and that the defendants
    assisted them in doing so.        Having reviewed the record on appeal,
    however, we must conclude, for the reasons that follow, that a
    reasonable jury could not have found these defendants guilty beyond
    Notwithstanding the repugnance of such activities, it must be
    kept in mind that the only charges before us are aiding and
    assisting in the preparation of false income tax returns, and
    conspiracy to do so. That is what the Government was required to
    prove beyond a reasonable doubt.
    14
    a reasonable doubt on the global theory asserted by the Government.
    In addition to the difficulty of trying to piece the evidence
    together on a count-by-count basis, our task in analyzing its
    sufficiency is complicated greatly by the incomplete state of the
    record on appeal.    After trial, hundreds of exhibits were released
    to the Government "for safekeeping until the time for appeal has
    run".     After the Coveneys filed their notices of appeal, each
    ordered transcripts of his initial appearance, arraignment, trial
    and sentencing.     They made no further designation of the record.
    In short, they did not request inclusion of the exhibits.                Nor did
    the Government supplement the record. Therefore, the record before
    us consists only of the papers filed in the district court and the
    transcripts   ordered   by    the   appellants.       We   do   not   have    the
    exhibits.
    It is well-settled, of course, that the appellant bears the
    burden of creating the record on appeal.             Fed. R. App. P. 11(a).
    If the record does not establish a basis for reversal, we will
    affirm.     Here, however, the record provided by the appellants,
    albeit incomplete, shows that the evidence was insufficient to
    support the Government's global theory.          We must then look to more
    specific evidence     for    whether    each   tax   return     listed   in   the
    indictment was false, and whether the defendants willfully assisted
    in its preparation.         In some instances, those elements can be
    established from the trial testimony.          In others, they cannot.        It
    may well be that the documentary evidence, to which we are not
    privy, would establish the essential elements on those counts. The
    15
    dilemma before us, then, is which party bears the burden of placing
    such evidence into the appellate record.          If the burden is with the
    appellants, we must affirm as to those counts.           See United States
    v. O'Brien, 
    898 F.2d 983
    , 985 (5th Cir. 1990).          But, if the burden
    is with the Government, we must reverse the convictions as to the
    applicable counts.
    We hold that, given the specific facts of this case, the
    burden of establishing a record which might provide sufficient
    evidence of an alternative basis for affirmance must be with the
    Government.     Though the appellants must initially designate the
    record, the appellee always has the opportunity to supplement it.
    Here, the appellants needed only the record, as they ordered it, to
    show    that   there   was   insufficient    evidence     to   support    the
    Government's    global   theory.15        Thus,   we   must    consider   the
    alternative basis for affirmance through a count-by-count review;
    and the Government must bear responsibility for providing us
    adequate information with which to do so.
    Moreover, the Government must realize that the potentially
    critical documents are not in the record before us.               They were
    released to it at the close of the trial, and there are repeated
    references to them in the Government's brief.            There are no such
    15
    The record does contain the trial exhibit list. While we
    recognize the generality of that list, it appears that the
    documentary evidence would not have provided the necessary
    additional support to prove, beyond a reasonable doubt, the
    Government's contention that no solar-powered EMS unit ever
    existed.
    16
    references in the appellants' briefs.   From this, we must conclude
    that the exhibits are still in the Government's possession.
    We have recognized, in the civil context, that the appellee
    bears some responsibility for creating a complete record on appeal.
    See Soley v. Star & Herald Co., 
    390 F.2d 364
    (5th Cir. 1968).
    Soley was decided before the Federal Rules of Appellate Procedure
    became effective, so it relies upon rules of civil procedure which
    have since been usurped by the appellate rules.       However, the
    rationale behind that decision is unchanged.   There, the district
    court dismissed an action for failure to state a claim.       In so
    doing, it apparently referred to evidence outside the pleadings.
    Acknowledging that the motion had been treated as one for summary
    judgment, our court concluded that it was unable to review that
    judgment, because the record did not include the evidence to which
    the district court had referred.   The appellees asserted that they
    were entitled to affirmance by default: because the record did not
    include the necessary information, there were no grounds upon which
    to reverse. Our court disagreed, concluding that the appellees had
    notice of the appellant's allegation of error, and were "not devoid
    of responsibility to inform" the appellate court.   
    Soley, 390 F.2d at 367
    .   "That responsibility increases when such appellees seek
    our stamp of approval on an unarticulated summary judgment for
    which no justification can be found in the record."   
    Id. at 368.
    Likewise, that responsibility must also increase when we are
    asked by the Government to conclude, pursuant to its global theory,
    that the jury had sufficient evidence upon which to convict.     If
    17
    the Government has nonetheless proven guilt beyond a reasonable
    doubt on some other theory, it bears the burden of showing us how.
    Obviously, this includes providing a sufficient and complete record
    on appeal.
    1.
    We look first to the 29 substantive counts of aiding and
    assisting in the preparation of false income tax returns, in
    violation of 26 U.S.C. § 7206(2).16 Proof for such a violation must
    establish    that    (1)   the   defendant   advised   or   assisted   in   the
    preparation of a tax return, (2) the return was false or fraudulent
    as to a material matter, and (3) the defendant acted willfully in
    doing so.    See United States v. Salerno, 
    902 F.2d 1429
    (9th Cir.
    16
    The statute reads, in pertinent part:
    Any person who --
    * * *
    (2) Aid or assistance.--Willfully aids
    or assists in, or procures, counsels, or
    advises the preparation or presentation
    under, or in connection with any matter
    arising under, the internal revenue laws,
    of a return, affidavit, claim, or other
    document, which is fraudulent or is false
    as to any material matter, whether or not
    such falsity or fraud is with the
    knowledge or consent of the person
    authorized or required to present such
    return, affidavit, claim, or document ...
    * * *
    shall be guilty of a felony....
    26 U.S.C. § 7206.
    18
    1990); United States v. Sassak, 
    881 F.2d 276
    (6th Cir. 1989);
    United States v. Hooks, 
    848 F.2d 785
    (7th Cir. 1988).
    The evidence was sufficient to show that Francis and Joseph
    Coveney advised or assisted in the preparation of the tax returns
    of all Enersolex investors.      A person need not actually sign or
    prepare a tax return to aid in its preparation.      See United States
    v. Williams, 
    809 F.2d 1072
    (5th Cir.), as corrected, 
    828 F.2d 1
    (5th Cir.), cert. denied, 
    484 U.S. 896
    (1987).           It is sufficient
    that    the   Coveneys   knowingly   participated   in     the   sale   and
    installation of EMS units and provided information about the
    transaction "with the expectation", 
    id. at 1095
    (emphasis in
    original), that the investors would use that information to file
    their tax returns.
    The Coveneys hired Ray Merry to prepare a report on the
    technical feasibility of the solar-powered EMS.            They retained
    Craig Welscher to prepare an opinion letter on the tax implications
    of purchasing the system and John Pearl to prepare an analysis of
    the estimated tax write-off.     They included all three documents in
    a promotional brochure which was provided to potential investors
    and financial advisors.      The jury could have concluded that the
    Enersolex project was marketed through financial advisors because
    the Coveneys knew that its tax advantages were among its strongest
    selling points.     Finally, Joseph Coveney provided each Enersolex
    investor who chose TTI as its installation company with photographs
    of their unit and information about the date of installation.            In
    short, the jury could reasonably have found that the Coveneys
    19
    marketed the units and provided the tax opinions and installation
    dates with the expectation that investors would rely on that
    material in filing their income tax returns.
    The more difficult question is whether the evidence was
    sufficient as to the Coveneys willfully providing information which
    they knew would lead to the preparation of tax returns which were
    false as to a material matter.         If they had told investors that
    they had purchased a solar-powered EMS and that the EMS had been
    installed, when, in fact, no solar-powered EMS existed, then
    certainly the elements of willfulness and falsity would also be
    established.    As noted, however, the record does not support that
    global theory.
    The Government put on extensive evidence that Enersolex often
    demonstrated    a   National   Enco   prototype,    but   actually   sold   a
    modified FNEC/Eckard unit; that there were problems with the
    FNEC/Eckard    microprocessing    chips;   that    Millar   considered   the
    National Enco model a superior one; and that the Enersolex EMS
    could not simultaneously operate on solar power and retain its
    remote monitoring capability.         However, none of these facts, or
    even all of them considered together, could lead a reasonable trier
    of fact to conclude that no solar-powered EMS was ever developed.
    In fact, many of the Government's own witnesses testified to the
    contrary.
    Welscher testified that he saw the Enersolex unit work at
    least twice.     Welscher was unsure whether the units he saw were
    developed from National Enco or FNEC/Eckard models, but Millar
    20
    testified that he was able almost immediately to convert the
    FNEC/Eckard EMS unit to solar power.17             Jack Teschemacher, the
    Enersolex marketing director, testified that changes were made in
    the   FNEC/Eckard   units   to     "bring   them   up   to    the   Enersolex
    standards".18   Michael Munroe, whose company sold solar panels for
    use with the Enersolex units, testified that solar power seemed an
    expensive way to operate the EMS, but solar panels were capable of
    powering the unit. Kent Maerki, head of Spectra Financial Network,
    through which numerous Enersolex units were sold, and one of his
    sales   representatives     also     testified     that      they   witnessed
    17
    Millar did testify that the unit could not simultaneously
    operate on solar power and retain remote monitoring capability.
    Units which were not solar powered, of course, could not qualify
    for the energy credit. But, there was no evidence, nor was the
    jury instructed, that a unit must have remote monitoring ability in
    order to qualify for an investment tax credit or energy credit.
    Certainly, TTI would prefer to access its units by telephone in
    order to avoid on-site maintenance calls.
    From this obvious preference, the Government builds its
    argument that technicians were instructed to disable the solar
    power in order to maintain the remote monitoring. But, while there
    is evidence that, on one occasion, Francis Coveney instructed
    technicians to install solar panels on the roof but not connect
    them to the EMS unit, there is no evidence that this was standard
    procedure. It may well be that any tax returns filed in relation
    to that transaction were false, and that the Coveneys aided and
    assisted in their preparation.       Obviously, such evidence is
    insufficient to establish that all tax returns claiming Enersolex-
    related deductions and credits are false. This is particularly so
    in light of the testimony that, in many cases, solar panels were
    installed and connected to the EMS unit.
    18
    Teschemacher also testified that at least two of the National
    Enco prototypes were installed at Enersolex end-user locations.
    There was no evidence to the contrary. Even if the FNEC/Eckard
    unit never worked with solar power, installation of solar-powered
    National Enco models (which the Government seems to concede would
    qualify for the claimed credits and deductions) would militate
    against the global conclusion that all Enersolex investors filed
    false tax returns.
    21
    demonstrations      of   the   Enersolex   units,   which    appeared       to    be
    functioning properly.
    Defense witnesses also testified that the Enersolex units
    worked.    John Pearl testified that he witnessed demonstrations of
    both the National Enco and FNEC/Eckard prototypes.              George Reneer,
    an end-user whose EMS was either replaced with a solar-powered
    unit, or converted to solar power, as discussed infra concerning
    count 3, testified that he saved money as a result of the unit
    installed at his business, and that he continued to do so with a
    solar-powered unit.
    The Government emphasizes that many witnesses testified that
    they simply couldn't tell whether the EMS unit was working, or
    whether it was being powered by solar panels.               Indeed, they did;
    but obviously, much more is required for a guilty verdict.                       The
    Government must prove guilt beyond a reasonable doubt.                  In sum,
    testimony which merely calls the investment (and, as a result, its
    tax advantages) into question, is not sufficient, standing alone,
    to   support   a   conviction.      Therefore,      we   must   look   to    each
    substantive count of the indictment and determine whether either of
    the Coveneys aided and assisted in the preparation of the tax
    return claimed to be false.        In 16 instances, counts 6-8, 12, 13,
    15, and 22-31, we conclude that they did.
    Count 6.    Douglas Devore purchased an eight-channel Enersolex
    EMS.    He selected TTI to install it, and received notice that his
    unit, serial number 8437, had been installed at the Ione Top Value
    22
    Market in Ione, California,19 on April 23, 1985.20         Devore testified
    that he spoke with an employee at the Ione Top Value and asked him
    to check the serial number on the EMS unit installed there.           Though
    Devore never testified to the number the employee read to him, he
    said that he became "concerned because of information [he] had
    now".    A photograph taken of the unit at the Ione Top Value
    reflected a serial number which did not match the one assigned to
    Devore. Devore received a subsequent letter from TTI informing him
    that the unit had been removed from Ione and installed at the Del
    Sol Food Market in Houston, Texas.        But, a photograph of the unit
    at the Del Sol revealed that it was a 16-channel unit, not an
    eight-channel, as Devore had purchased.
    Devore testified that he filed a 1984 return in which he
    claimed benefits as a result of the Enersolex investment.              Given
    all of this evidence, a reasonable jury could have concluded that
    Devore   never   owned   a   unit   entitling   him   to   those   benefits.
    Likewise, because Enersolex (Francis Coveney) and TTI (Joseph
    19
    Devore testified he was told initially that his unit would be
    installed in Newport Beach, California. This was apparently near
    his home, and he told TTI representatives that he intended to see
    the unit. Approximately a month later, he was informed that the
    unit could not be installed in Newport Beach and would, instead, be
    installed in Ione.
    20
    All of the returns at issue were for the 1984 tax year. We do
    not determine when the units must have been installed to qualify
    for 1984 tax benefits, however, because TTI notified the investors
    of the installation dates (only one of which was in 1984) and there
    are no allegations that those dates were fabricated.            The
    Government does not contend that the investors' decisions regarding
    the year for which they would claim the benefits of their
    investments were the result of any aid or assistance from the
    Coveneys.
    23
    Coveney) gave him information apparently confirming such ownership,
    a reasonable jury could have also found that the Coveneys aided and
    assisted in the preparation of the false tax return filed as a
    result of those representations.
    Counts 7 and 8. Guillermo Bruce purchased an Enersolex EMS on
    the recommendation of his financial planner, and was subsequently
    informed that his unit, serial number 8434, had been installed at
    the Lamplighter Restaurant in North Hollywood, California, on
    December 31, 1984.     Millar testified that the installation at the
    Lamplighter was not a conversion.           He took an Enersolex unit to
    California, but did not activate its solar capacity.                    Francis
    Coveney had instructed him to install the solar panels, but not
    connect   them   to   the   unit,   in    order   to   maintain   the    remote
    monitoring capability.      In short, this unit looked solar powered,
    but wasn't.
    Approximately six weeks after receiving notice of the December
    installation, Bruce was informed that his unit had been removed
    from the Lamplighter because "savings could not be maintained at
    the end user location due to the operation of the owner".                   Two
    weeks later, he was advised by letter that his unit had been
    installed on June 10, 1985, at the Ione Top Value Supermarket.
    Bruce claimed 1984 tax benefits for his Enersolex investment
    both personally and through Bruce Investments Company.                    Other
    evidence at trial included a photograph taken in 1986 of the EMS
    unit at the Ione Top Value.         That unit bore a different serial
    number: 8467.    A reasonable jury could have concluded that Bruce
    24
    never owned the Enersolex unit for which he claimed those benefits.
    Accordingly, the returns for Bruce and his company would be false
    as to a material matter.        As in the case of Devore, a reasonable
    jury could have found that the Coveneys aided and assisted in the
    preparation of those returns by giving false information upon which
    a taxpayer relied in filing a return.
    Counts 12 and 13. Janet Horner and her husband also purchased
    the smallest Enersolex unit, an eight-channel EMS.              She testified
    that, as a result of that purchase, they claimed benefits on their
    1984 personal and JMH Investment Company returns.              A letter dated
    May   1,    1985,   informed   the   Horners   that   their    unit   had    been
    installed at Longhorn Foods.
    Richard Barsness, an OEC investor, testified that one of his
    units, leased in 1983, was installed at Longhorn Foods.                 Joseph
    Coveney confirmed that a 24-channel unit was installed for Barsness
    at that location.        Some time later, however, Barsness received
    notice that his unit was being removed from that location because
    TTI   was    "unable   to   obtain   necessary    repair      parts   from   the
    manufacturer and because of economic reasons".21
    Janet Horner testified that she understood the Longhorn Foods
    location was being "transferred" to her.          She, however, purchased
    an eight-channel EMS.          The unit installed for Barsness had 24
    channels.     Joseph Coveney testified that that same unit "is on the
    wall now assigned to Janet Horner".            Because Barsness testified
    21
    Joseph Coveney testified that these letters were sent to OEC
    investors in February 1985.
    25
    that he did not transfer his unit to anyone and gave no one
    permission to use it, a reasonable jury could have concluded that
    Enersolex "sold" the Horners a unit which belonged to OEC and was
    being leased to Barsness.           The Horners could not, therefore, own
    the unit and would not be entitled to the tax advantages for such
    ownership.
    Counts 15 and 22 through 31.            Count 22 involves the return of
    the Energymisers partnership; counts 15 and 23-31, returns filed by
    Energymisers partners.        The partnership invested in several eight-
    channel Enersolex units and received notice that one of them was
    installed at Ryder Truck Rental in Houston.
    Steve Halliburton, who performed installation work for TTI,
    described    the    process    of    converting          an   electrically-powered
    FNEC/Eckard EMS to solar power.              He testified that he performed
    this transformation at a number of locations, thereby                  converting
    an OEC unit to an Enersolex unit.                 One location was Ryder Truck
    Rental.   In light of the testimony about Enersolex's difficulty in
    locating end-users and the termination of TTI-OEC contracts so that
    OEC sites could be used for Enersolex investors, a reasonable jury
    could have concluded that the unit at Ryder Truck Rental was the
    property of OEC and one of its lessees.                  As was the case with the
    Horners, it could not legally have been sold to Energymisers.
    Phillip Rulon, the general partner who prepared 1984 income
    tax returns for Energymisers partners, testified that Energymisers
    claimed     tax    benefits   because        of    the    Enersolex   investment.
    Moreover, those benefits were passed through to the partners and
    26
    were     reflected     in    their      individual    returns.          Neither     the
    partnership nor the partners would be entitled to such benefits if
    the EMS was not Enersolex's to sell.
    Evidence regarding counts 2, 3, 5, 9-11, 14, and 16-21 was
    admitted at trial.            However, the testimony was insufficient to
    prove that the tax returns were false, or that the Coveneys
    willfully       provided     the   false   information       rendering      them    so.
    Accordingly,      as   hereinafter       discussed,       there   was   insufficient
    evidence    from     which    a    reasonable     jury    could    find,    beyond    a
    reasonable doubt, that either Francis or Joseph Coveney was guilty
    on these counts.
    Count 2. Rena and Clifford Brantner claimed benefits on their
    1984 return as a result of purchasing two eight-channel Enersolex
    units.     They received letters from Joseph Coveney informing them
    that one unit was installed on April 8, 1985, at Patterson Services
    in Houston; the other, at Baytown Motors in Baytown, Texas, on
    April 11, 1985.          The IRS disallowed the Brantners' depreciation
    deduction, and they appealed.              Clifford Brantner testified that
    they "did resolve [the matter]" through the appeal process.                        It is
    unclear from his testimony whether other credits or deductions were
    disallowed, and how the depreciation issue was finally resolved.
    This evidence is insufficient to establish either the falsity
    of the return or the Coveneys' willfulness.                 We cannot discern the
    precise basis for the IRS's initial disallowance, or how that
    matter was ultimately concluded.                Neither are there any questions
    raised,    as    there      were   on   some    counts,    about   the     Brantners'
    27
    ownership of their units, or whether those units were actually
    solar powered.   And, the record on appeal is silent about either of
    the Brantners' end-user locations.
    Count 3.    Concerning Katheryne and Roger Chassay's return, he
    testified that he invested in Enersolex for the 1984 tax year, and
    claimed benefits as a result of that investment. Chassay testified
    also that he visited Gayla Industries, the installation site for
    one of his units, on more than one occasion. During a visit in May
    1985, solar panels were visible on the roof; on another occasion,
    they were not.
    Reneer,    the   vice-president    of   Gayla,   whose   testimony   is
    discussed in 
    part supra
    , was called as a defense witness, and
    testified that TTI installed an EMS there in the early to mid-
    eighties, that the unit saved money on electric bills, and that
    solar panels were later added to the system.           When Gayla added a
    new roof to its building, the panels were removed, but Reneer never
    contacted TTI to replace them.     Reneer identified a photograph of
    the Enersolex unit installed at Gayla, confirming that it looked as
    if a label underneath the one pictured had been torn off.          But, he
    testified that "either a sticker or a label was changed or maybe
    there was a different panel to start with."           (Emphasis added.)
    This evidence is similar to that which we found sufficient for
    counts 15 and 22-31.      It is a close call.         But, because Reneer
    testified that the EMS unit may have been replaced, we hold that it
    is insufficient to establish the Coveneys' guilt.             A reasonable
    jury could not have concluded beyond a reasonable doubt that an OEC
    28
    unit was initially installed and later converted to solar power.
    Therefore, there is insufficient evidence to conclude that the
    Chassays did not own the unit.
    A reasonable jury could have concluded that the unit ceased
    being solar powered when Gayla re-roofed its building.            However,
    there is no proof on when that took place.           In order to establish
    falsity in the Chassays' 1984 tax return, the Government had to
    prove that the unit was not solar powered during the period covered
    by that return.       Nor, concerning the panel removal, was there any
    testimony which would establish the Coveneys' willfulness. Indeed,
    there was no testimony that the Coveneys knew about, or directed,
    removal of the panels.
    In short, this evidence could not have led a reasonable jury
    to conclude either that the Chassays' 1984 income tax return was
    false,    or   that    the   Coveneys    willfully   provided   information
    rendering it so.
    Count 5. For Barbara and Stephen Kucka's 1984 return, Stephen
    Kucka testified that, on November 16, 1984, he received a letter
    from Joseph Coveney, informing him that his Enersolex unit had not
    been installed.       On April 8, 1985, he received notice that his unit
    had been assigned serial number 8410, and installed at Chem Central
    in Houston on April 1.         In reliance on this information, Kucka
    claimed tax benefits, which were disallowed by the IRS.
    Kucka's testimony also described his difficulty in contacting
    TTI.    After numerous attempts to do so, he called Chem Central to
    confirm installation. He learned that the "unit was not functional
    29
    and not working". Millar testified that he performed the Enersolex
    installation at Chem Central.         He explained that an OEC unit had
    previously been placed at that location, but was not converted to
    solar power.      Rather, it was replaced with an Enersolex unit.
    This evidence could not lead a reasonable jury to find the
    Coveneys guilty beyond a reasonable doubt of aiding and assisting
    in the preparation of a false income tax return.                There is no
    evidence which      calls    the   Kuckas'   ownership   of   the   unit   into
    question.      Steve Kucka testified that the unit did not work, but
    this   alone    does   not   establish   the   falsity   of   the   return   or
    willfulness on the part of the Coveneys.            The evidence does not
    describe the problem, nor is there any evidence that the Coveneys
    knew this unit did not work properly, or that it malfunctioned
    because of any action by them.
    Count 9.    Concerning the 1984 return for Carol and Stanley
    Swartz, there was very little testimony about them; and we conclude
    that the evidence was insufficient to support the conviction of
    either Francis or Joseph Coveney.
    James Baker, a CPA and Spectra representative, testified that
    he sold an Enersolex unit to the Swartzes, and that the unit was
    installed on April 1, 1985. Baker also prepared the Swartzes' 1984
    return, which included deductions for depreciation and installation
    of the Enersolex unit, as well as investment and energy tax
    credits.
    30
    Our    review    of   the    record     reveals    no    evidence   about    the
    Swartzes' end-user location22 or the installation process for that
    unit.     In short, a reasonable jury could not have concluded that
    the Swartzes' return was false as to a material matter.
    Count 10.       As for the 1984 return of Ann and George Yount,
    they purchased three Enersolex units through Baker.                       He also
    prepared their 1984 income tax return, claiming the same benefits
    as he did on behalf of the Swartzes.             Again, there is insufficient
    evidence from which a reasonable jury could conclude that the
    Younts were not entitled to those benefits.                   Indeed, what little
    testimony    was     offered     on   the    matter    seems    to   support     such
    entitlement.
    The Younts were informed that one of their units was installed
    at a Ben Franklin store in Houston, another at a Baptist church in
    the Houston area, and the last at Texas Western Beef (no location
    given).     There was no further identification of the church.                    The
    testimony regarding Texas Western Beef and Ben Franklin points to
    the legitimacy -- not falsity -- of the return.                  Millar testified
    that OEC units previously existed at both locations, but that he
    removed them and installed Enersolex units.                  There was no contrary
    evidence.       We    conclude,       therefore,       that    the   evidence     was
    insufficient to establish the falsity of the return.
    22
    Baker did testify that he and the Swartzes once called the
    end-user and asked maintenance personnel if the unit was installed
    there. He did not name the end-user; and a hearsay objection was
    sustained, precluding him from repeating the response to his
    installation inquiry.
    31
    Counts 11 and 14.       These counts involve the 1984 returns of
    Joyce and Roswell Combs (count 11) and Mignon and Eugene Kurtz
    (count 14).      The Combses and the Kurtzes each purchased a 16-
    channel Enersolex unit through their accountant and tax preparer,
    Phillip Rulon.       As discussed, Rulon also arranged the investments
    in eight-channel Enersolex units for the Energymisers partnership
    and prepared the 1984 individual tax returns for most of its
    partners (counts 15 and 22-31).             The same year, he arranged the
    purchase of three 16-channel units: one for the Combses, one for
    the Kurtzes, and one for himself.
    Rulon served as the general partner in the Energymisers
    partnership, and invested in the eight-channel units, as well.
    However, it is unclear from his testimony whether the Government
    was   trying    to   prove   that    the    Combses   and    the    Kurtzes    were
    Energymisers partners, and therefore held an interest in the eight-
    channel units, in addition to ownership of the 16-channel units.
    Moreover, when the Government had Rulon identify Energymisers
    partners, it did not inquire about the Combses or the Kurtzes.
    Because   the    Government    did    not    establish      their    Energymisers
    partnership     beyond   a   reasonable      doubt,   we    cannot    affirm   the
    convictions on these counts on the same basis as those involving
    proven Energymisers partners.23
    23
    Of course, we mean only that this was not established in the
    record on appeal (testimony).    Examination of the Combses' and
    Kurtzes' 1984 returns, had they been included in the record on
    appeal, would have shown whether they claimed benefits through the
    partnership. In addition, examination of Rulon by the Government
    included repeated references to, and introduction of, exhibits,
    such as the partnership return and the Schedule K1 and tax returns
    32
    Furthermore, there is no testimony about the installation or
    end-user sites for the 16-channel units these taxpayers purchased.
    Therefore, the record on appeal contains no evidence which could
    lead a reasonable jury to conclude that the returns were false, or
    that   any   crime   was    committed    by   the   Coveneys    in     aiding   and
    assisting in their preparation.
    Count 16.     Patricia and Kip Walker purchased an Enersolex
    unit, and claimed benefits in their 1984 return as a result.                    Kip
    Walker testified that he received a letter from TTI stating that
    his unit had been installed in Austin, Texas, at a business known
    as Freshco, on June 3, 1985.       His testimony was preceded by that of
    Mike Davis, an OEC investor.        Davis testified that he invested in
    OEC in late 1983, and that his OEC unit had also been assigned the
    Freshco location.      However, he received a letter from TTI, dated
    June 10, 1985, stating that his unit had been removed because
    savings could not be maintained.             Davis did not sell his unit or
    give anyone permission to move it.
    In light of the testimony about on-site conversions, one
    explanation    of    this   situation    might      well   be   that    Enersolex
    converted a unit it did not own.              Absent testimony which would
    support that theory, however, the jury is not allowed to make such
    a logical leap, for it is just as likely that the OEC unit was
    indeed removed and replaced with the Enersolex unit. The record is
    he prepared for the partners; but, as stated, none are included in
    the record on appeal. Our difficulty in reviewing his testimony,
    without the exhibits referred to during it, is a classic example of
    why the Government should have included them in the record on
    appeal.
    33
    full of testimony about particular locations, and the installations
    or   conversions         which    occurred     there.        However,       there    is    no
    testimony about the procedure followed at Freshco.
    The   only    other       testimony     about    this       location   came     from
    Margaret DePrez, with the IRS Criminal Investigation Division.
    DePrez testified that she visited Freshco in 1987 to photograph the
    Enersolex unit, but was unable to locate it.                   The absence of a unit
    in 1987, without more, does not prove the truth or falsity of the
    1984 return.         Accordingly, we conclude that the evidence was
    insufficient        to    establish      the       falsity    of    that    return,       and
    therefore, insufficient to support the convictions on this count.
    Counts 17 through 21.            Count 17 involves the 1984 partnership
    return for Capital Equipment II; counts 18-21, the returns filed by
    its partners.        Galyd Perkins testified that he prepared the 1984
    partnership     and        partner      returns.        The    partnership          claimed
    deductions for depreciation and installation of Enersolex units, as
    well as investment and energy tax credits.                           Each of the four
    partners in issue claimed the tax benefits which were passed
    through from the partnership.
    Testimony revealed that the partnership purchased at least
    three Enersolex units. One was installed at Truk Shak (no location
    given); the other two in Houston, at Bobby's Supermarket and North
    Freeway Porsche-Audi.             A TTI field service technician testified
    that   the   Truk        Shak    unit   was    converted      at    the    warehouse      and
    transported to the installation site.                    An IRS agent visited the
    North Freeway Porsche-Audi location in 1987 and photographed the
    34
    EMS   unit    installed    there.     This      evidence    could   not    lead     a
    reasonable jury to conclude that the partners and partnership were
    not entitled to the claimed tax benefits.                 The record on appeal
    contains      no   more   testimony    about      these     locations      or     the
    installations which occurred there.             Accordingly, we conclude that
    the evidence was insufficient to support the convictions on these
    counts.
    2.
    Although the record on appeal contains insufficient evidence
    for   affirmance     on   all   substantive      counts,   it   includes        ample
    evidence that Francis and Joseph Coveney conspired to aid and
    assist in the preparation of false returns (count 1).               In order to
    convict for conspiracy under 18 U.S.C. § 371, the jury must find
    (1) an agreement between two or more people to violate the law, and
    (2) an overt act by any member of the conspiracy in furtherance of
    it. United States v. Bourgeois, 
    950 F.2d 980
    , 983 (5th Cir. 1992).
    Proof of a specific agreement is not necessary; the jury may infer
    an agreement from a concert of action.             
    Id. There was
      substantial    evidence      that    the   Coveneys    worked
    together in forming TTI and Enersolex, that they travelled together
    promoting the Enersolex program, and that they worked together on
    the day to day operation of each company.                Though Francis worked
    out of the Enersolex office in San Antonio, and Joseph out of the
    TTI office in Houston, several witnesses testified that the two
    companies     were   essentially    one    in   the   same.      Moreover,       both
    brothers were apparently present at meetings where some of                        the
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    "conversions" were discussed.     An agreement to take an OEC unit,
    without the consent of the OEC investor, convert it to solar power
    and "sell" it to an Enersolex investor is an agreement to violate
    the law, in that, among other things, the sale would aid and assist
    in the preparation of false returns, because it was performed with
    the expectation that investors would rely on their erroneous belief
    of ownership in filing returns.
    Needless to say, there were numerous overt acts in furtherance
    of this agreement.    Enersolex units were sold to those investors
    previously discussed.     Joseph Coveney wrote letters to many of
    them, informing them of the end-user locations and installation
    dates.     There was sufficient evidence for the jury to find that
    these are all overt acts taken with the expectation that taxpayers
    would rely on the false information in preparing and filing their
    returns.
    III.
    Accordingly, the convictions on counts 1, 6, 7, 8, 12, 13, 15,
    and 22-31 are AFFIRMED; those on counts 2, 3, 5, 9, 10, 11, 14, and
    16-21 are REVERSED; all sentences are VACATED; and the case is
    REMANDED for resentencing.
    AFFIRMED in Part; REVERSED in Part; and REMANDED.
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