United States Court of Appeals
                            FOR THE EIGHTH CIRCUIT
                                   ___________

                                   No. 04-2024
                                   ___________

United States of America,               *
                                        *
                   Appellee,            * Appeal from the United States
                                        * District Court for the District
      v.                                * of Minnesota.
                                        *
James Robert Rockenback,                *       [UNPUBLISHED]
                                        *
                   Appellant.           *
                                   ___________

                             Submitted: May 10, 2005
                                Filed: June 27, 2005
                                 ___________

Before MURPHY, FAGG, and BENTON, Circuit Judges.
                           ___________

PER CURIAM.

       James Robert Rockenback pleaded guilty to aiding and abetting attempted
carjacking in violation of 18 U.S.C. §§ 2119 & 2. Specifically, the plea agreement
stated Rockenback, aiding and abetting Che Romero and with the intent to cause
serious bodily harm, attempted to take a motor vehicle from Danielle Taylor by force,
violence, and intimidation. The district court* sentenced Rockenback to seventy-eight
months in prison. Rockenback appeals his sentence. We affirm.


      *
       The Honorable Ann D. Montgomery, United States District Judge for the
District of Minnesota.
       According to the presentence report (PSR), Rockenback and Che Romero tried
to rob a diamond store by abducting and carjacking the store’s owner at gunpoint.
When the owner escaped, the men forced their way into Taylor’s apartment to evade
police. Rockenback disabled Taylor’s phone, took Taylor’s car keys, and left the
apartment. Police found Rockenback hiding in Taylor’s car and arrested him. After
police surrounded Taylor’s apartment and Romero surrendered, police recovered
Romero’s gun from Taylor’s apartment and found a semiautomatic handgun in the
rental vehicle driven by Romero and Rockenback. Rockenback did not object to
these facts in the PSR.

      At sentencing, the district court began with a base offense level of 20, see
U.S.S.G. § 2B3.1(a)(2003), which the parties had agreed on in the written plea
agreement, then added five levels because a firearm was brandished or possessed
during the offense, see 

four levels because a victim was
abducted to facilitate the offense or escape, see 

and two levels
because the offense involved carjacking, see 

The district court
declined to decrease Rockenback’s offense level for having a minor role in the
offense, see 

and for merely attempting to commit the offense, see 

but did decrease Rockenback’s offense level by three for acceptance
of responsibility, see 

Except for the acceptance of responsibility
reduction, each of the enhancements and reductions were specified in the plea
agreement as disputed by the parties. Because Rockenback had a criminal history
category of I, his sentencing range under the guidelines was seventy-eight to ninety-
seven months. The district court sentenced Rockenback at the low end of the range.

      Rockenback asserts for the first time on appeal that his sentence violates the
Sixth Amendment because his sentence enhancements were based on facts that were
not admitted by him or found by a jury beyond a reasonable doubt. See United States
v. Booker, 

, 756 (2005). In responding to the PSR, however,
Rockenback did not challenge the fact that Romero brandished a gun and abducted

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Taylor, but simply made a legal argument that he should not receive the
corresponding enhancements because he did not commit the acts himself. Likewise,
at sentencing, Rockenback made no objections to the facts related to the sentencing
enhancements. Thus, the district court adopted the facts in the PSR and applied the
enhancements to Rockenback because he was legally responsible for Romero’s acts
under U.S.S.G. § 1B1.3(a)(1)(B). By failing to specifically object to the facts in the
PSR, Rockenback admitted the facts supporting the enhancements for the purposes
of Booker. United States v. McCully, 

, 933 (8th Cir. 2005). Thus, there
was no Sixth Amendment violation. 

asserts that because he only pleaded guilty to attempted
carjacking, the district court should have reduced his sentence for mere attempt under
§ 2X1.1(b)(1). The § 2X1.1(b)(1) reduction does not apply, however, when “the
circumstances demonstrate that the defendant was about to complete all such acts but
for apprehension or interruption by some similar event beyond the defendant’s
control.” Rockenback admits that after he and Romero forced their way into Taylor’s
apartment, he took Taylor’s keys from her counter, left the apartment, and got into her
car. As the Government notes, a defendant may commit a carjacking without actually
taking a car when the victim is not in the car. See United States v. Boucha, 

, 775-76 (6th Cir. 2001). Here, Rockenback had completed the acts necessary to
take control of the car from Taylor, and was waiting for Romero in the car when
police found and arrested him. The arrest of Rockenback prevented the men from
leaving in Taylor’s car. Under the circumstances, we conclude the district court
properly declined to reduce Rockenback’s sentence for mere attempt.

       Rockenback also argues the district court should have reduced his offense level
for his minor role in the offense under § 3B1.2(b). We review the district court’s
finding that Rockenback did not play a minor role in the attempted carjacking for
clear error. United States v. Johnson, 

, 538 (8th Cir. 2005). To decide
whether a defendant should receive a reduction for minor role, the court compares the

                                         -3-
acts of each participant in relation to the relevant conduct and measures each
participant’s acts and culpability against the offense’s elements. 

Here,
Rockenback committed most of the acts relevant to the attempted carjacking. After
disabling Taylor’s telephone, Rockenback took Taylor’s car keys, left her apartment,
found her car, and entered it. We cannot say the district court committed clear error
in finding Rockenback’s role was not minor.

       Last, we note the district court committed plain error in applying the sentencing
guidelines as mandatory rather than advisory, but we need not remand for
resentencing because Rockenback has not shown a reasonable probability that the
district court would have imposed a lighter sentence under an advisory guideline
scheme. 

. Rockenback’s sentence at the bottom of the
range is not enough in itself to make the required showing. 

affirm Rockenback’s sentence.
                     ______________________________




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