United States Court of Appeals
                              FOR THE EIGHTH CIRCUIT
                                    ___________

                                    No. 02-1356
                                    ___________

United States of America,                *
                                         *
      Plaintiff - Appellee,              * Appeal from the United States
                                         * District Court for the
      v.                                 * Southern District of Iowa.
                                         *
Greg Allen Johnson,                      *      [UNPUBLISHED]
                                         *
      Defendant - Appellant.             *
                                    ___________

                               Submitted: June 11, 2002

                                   Filed: August 16, 2002
                                    ___________

Before WOLLMAN, RICHARD S. ARNOLD and LOKEN, Circuit Judges.
                         ___________

PER CURIAM.

     Greg Allen Johnson appeals his conviction for conspiring to distribute
methamphetamine in violation of 21 U.S.C. §§ 841(b)(1)(A) and 846. We affirm.

       The superseding indictment charged Johnson with participating in a conspiracy
to distribute methamphetamine from July 1997 to September 2000. At trial, the
government presented testimony by numerous witnesses that Johnson was engaged
in distributing methamphetamine during this entire period, though his suppliers and
customers varied over time. Focusing on the change of suppliers that occurred when
Johnson’s initial supplier was arrested in August 1998, Johnson argues that the
evidence at trial established the existence of multiple conspiracies, a fatal variance
in the government’s proof. We disagree. “[T]he fact that there may have been
multiple sources of [methamphetamine] does not create multiple conspiracies, and the
evidence here supports the view that those charged in this case were members of a
single conspiracy, even though there may have been other drug conspiracies in the
community.” United States v. Cabbell, 

, 1262 (8th Cir. 1994). In
addition, a claim of fatal variance requires proof of prejudice, and “it is difficult to
see how the defendant was prejudiced given that he was the sole defendant on trial
and was . . . implicated in any other conspiracy the evidence could prove.” United
States v. Lopez-Arce, 

, 781 (8th Cir. 2001).

       Johnson further argues that the district court1 erred in giving the multiple
conspiracy instruction approved by this court in United States v. Adipietro, 

, 1475 (8th Cir. 1993), rather than a longer instruction requested by the defense.
This contention is without merit. “If the evidence supports a single conspiracy, the
failure to give a multiple conspiracy instruction is not reversible error.” United
States v. Roach, 

, 412 (8th Cir.), cert. denied, 

(1999).

      The judgment of the district court is affirmed.

      A true copy.

             Attest:

                CLERK, U. S. COURT OF APPEALS, EIGHTH CIRCUIT.



      1
       The HONORABLE HAROLD D. VIETOR, United States District Judge for
the Southern District of Iowa.

                                          -2-