United States Court of Appeals
                              FOR THE EIGHTH CIRCUIT
                                     ___________

                                     No. 04-3810
                                     ___________

United States of America,                 *
                                          *
      Plaintiff - Appellee,               * Appeal from the United States
                                          * District Court for the
      v.                                  * Western District of Missouri.
                                          *
Michael Allen Lighthill,                  *      [UNPUBLISHED]
                                          *
      Defendant - Appellant.              *
                                     ___________

                               Submitted: June 20, 2005
                                  Filed: June 27, 2005
                                   ___________

Before LOKEN, Chief Judge, MORRIS SHEPPARD ARNOLD and COLLOTON,
      Circuit Judges.
                             ___________

PER CURIAM.

       Michael Allen Lighthill pleaded guilty to being a felon in possession of a
firearm, in violation of 18 U.S.C. §§ 922(g)(1) & 924(a)(2). The Presentence
Investigation Report (PSR) recommended that the court impose a four-level
sentencing enhancement under the then-mandatory Guidelines because Lighthill
possessed the firearm in connection with a felony drug offense, based on evidence
that Lighthill was arrested with the firearm in a car stocked with methamphetamine,
methamphetamine precursors, and drug paraphernalia. See U.S.S.G. § 2K2.1(b)(5).
In the district court, Lighthill objected to the enhancement and to the pertinent factual
statements in the PSR. He also argued that the enhancement would be
unconstitutional under Blakely v. Washington, 

(2004), because the
facts underlying the enhancement were neither admitted nor charged in the
indictment. The district court overruled these objections and imposed the
enhancement, which increased Lighthill’s applicable Guidelines range from 51 to 63
months in prison to 77 to 96 months in prison. The court sentenced Lighthill to 77
months in prison, the bottom of the applicable mandatory range.

       On appeal, Lighthill argues that the district court violated his Sixth Amendment
rights under Blakely, a claim governed by the Supreme Court’s supervening decision
in United States v. Booker, 

(2005). Sentencing Lighthill under the
mandatory Guidelines regime then in effect was error under Booker. United States
v. Pirani, 

, 548-49 (2005). As Lighthill preserved this claim in the
district court, the government must prove that the error was harmless. United States
v. Haidley, 

, 644-45 (8th Cir. 2005).

       The government argues that Lighthill forfeited his Blakely claim by failing to
argue that the district court should not treat the Guidelines as mandatory. This
argument is foreclosed by our controlling en banc decision in 

.
The government further argues that there was no Sixth Amendment error because
Lighthill did not “seriously dispute” the facts underlying the enhancement, making
the district court’s findings of fact on the issue “essentially uncontradicted.” As we
explained in Pirani, this argument, even if true, does not eliminate the Booker error.

       The government’s post-Booker brief made no attempt to argue that the Booker
error was harmless, and after careful review of the sentencing record, we are unable
to conclude that the error was harmless. Accordingly, the sentence is vacated, and the
case is remanded for resentencing in light of United States v. Booker.
                        ______________________________



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