*

 This order and judgment is not binding precedent, except under the doctrines of

law of the case, res judicata, and collateral estoppel. This court generally disfavors the

citation of orders and judgments; nevertheless, an order and judgment may be cited under

the terms and conditions of 10th Cir. R. 36.3.

F I L E D

United States Court of Appeals

Tenth Circuit

OCT 19 1999

PATRICK FISHER

Clerk

UNITED STATES COURT OF APPEALS

TENTH CIRCUIT

UNITED STATES OF AMERICA,

Plaintiff-Appellee,

v.

ERIC KENNETH AHLENIUS

Defendant-Appellant.

No. 98-1414

(98-CR-261-1-B)

(D. Colo.)

ORDER AND JUDGMENT*

Before KELLY, HOLLOWAY, and BRISCOE, Circuit Judges.

Defendant Eric Ahlenius (Defendant) pleaded guilty to knowingly and

intentionally possessing with the intent to distribute (and actual distribution) of crack

cocaine in violation of 18 U.S.C. § 2 and 21 U.S.C. §§ 841(a)(1) & (b)(1)(B)(iii). 

Defendant moved to withdraw his guilty plea, however, after the amended presentence

report suggested that he receive a career offender enhancement. The district judge denied

the motion and applied the career offender enhancement to Defendant. This timely

appeal ensued. We have jurisdiction pursuant to 28 U.S.C. § 1291.
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I

In August 1998, Defendant pleaded guilty to knowingly and intentionally

possessing with the intent to distribute (and actual distribution) of crack cocaine in

violation of 18 U.S.C. § 2, aiding and abetting, and 21 U.S.C. §§ 841(a)(1) &

(b)(1)(B)(iii). See 1 Supp. App. Doc. 32 at 2; 1 App. Doc. 8 at 2. The plea agreement

suggested that Defendant’s sentence would range from either 110 to 137 months or from

151 to 181 months (depending on whether the district judge considered a prior drug

transaction relevant conduct with the current offense). See id. at 2, 7, 8. The sentencing

ranges were based, in part, on the parties’ belief that Defendant was not eligible for a

career offender enhancement. See id. at 6, 7.

The agreement noted, however, that the criminal history computation was

“tentative,” see id. at 6, that the judge was not bound by the sentence determinations of

the parties, see id. at 5, and that the judge had discretion to consider other factors in

sentencing, see id. at 3, 5. Moreover, the district judge emphasized during his colloquy

with Defendant at his arraignment on August 14, 1998 that the plea agreement provided

only an estimate of the sentence and that the district judge would determine the sentence,

based on the information contained in the presentence report (not based on the plea

agreement). See 2 App. at 7-8. Defendant, on more than one occasion, stated that he

understood that the district judge had discretion in sentencing. See 1 Supp. App. 31 at 1; 
1

 The Defendant was thirty years old at the time of his arraignment on August 14,

1998. Id. at 2-3. He had gone to school until the tenth grade, withdrawing from school

that year. P.S.R. at 13.

2

 The government states in its brief that Defendant moved to withdraw his plea

before the district judge accepted it. See Appellee’s Response Br. at 1. The record,

however, indicates that the district judge accepted the plea on August 14, 1998, see 2

App. at 16, which occurred before Defendant’s motion to withdraw the agreement on

October 2, 1998. See 1 App. 40 at 1. We do not consider the ability of a defendant to

withdraw a plea before it is accepted. Cf. United States v. Alvarez-Tautimez, 160 F.3d

573, 576 (9th Cir. 1998) (“Alvarez had the absolute right to withdraw his plea before it

was accepted by the district court.”).

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2 App. at 7-8.1

After the district judge accepted the plea agreement,2 the probation office prepared

a presentence report which suggested that Defendant’s three prior convictions for escape

and attempted escape might constitute crimes of violence warranting the career offender

enhancement. See P.S.R. at 5. However, the probation office could find no binding

precedent holding that escape attempts similar to Defendant’s constituted crimes of

violence. See id. The office therefore used the “rule of lenity” and did not apply the

career offender enhancement to Defendant in the report. See id.

The government responded by providing the probation office with binding Tenth

Circuit precedent which purported to hold that all escape attempts were crimes of

violence. See Addendum to the P.S.R. at 1. The probation office then amended the

presentence report to suggest that the district judge apply the career offender

enhancement to Defendant. See id. With the enhancement, the presentence report

determined that Defendant’s sentencing range was 262 to 327 months (that range
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determination was based, in part, on the probation office’s determination that a prior drug

transaction was relevant conduct with the current offense). See 4 App. at 20.

In response, Defendant moved to withdraw his guilty plea on October 2, 1998. See

1 App. 40 at 1. At the sentencing hearing on October 23, 1998, the district judge denied

the motion because: (1) Defendant had never asserted his innocence, (2) the government

would be prejudiced by allowing the Defendant to withdraw his plea, (3) the court would

be inconvenienced because Defendant moved to withdraw his plea merely to dispute the

length of sentence, not to assert his innocence, and (4) Defendant had been advised that

the court and not the plea agreement would determine the length of sentence. See 3 App.

at 11-14.

Thereafter, the district judge applied the career offender enhancement to

Defendant, see 4 App. at 15, and found that a prior drug transaction was relevant conduct

with respect to the current offense, see id. at 16-17, 19. The judge therefore determined

that Defendant’s sentencing range was 262 to 327 months. See id. at 20. The district

court then sentenced Defendant to the lowest sentence within that range, 262 months, at

the continued sentencing hearing on October 30, 1998. See id.

II

A

Defendant argues that the district judge abused his discretion by refusing to allow

Defendant to withdraw his guilty plea. See United States v. Guthrie, 64 F.3d 1510, 1513
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(10th Cir. 1995) (stating the standard of review).

Before imposing a sentence, a district judge “may permit the plea to be withdrawn

if the defendant shows any fair and just reason.” Fed. R. Crim. P. 32(e). In making that

determination, a court ordinarily weighs seven factors. See United States v. Gordon, 4

F.3d 1567, 1572 (10th Cir. 1993) (listing the seven factors). Defendant does not dispute

the district judge’s balancing of those factors. Instead, Defendant presents four

arguments why the district judge nevertheless abused his discretion by denying

Defendant’s motion. See Appellant’s Opening Br. at 4-10.

First, Defendant argues that both his attorney and the government were mistaken

about whether the career offender enhancement would apply to him. See id. at 9-10. 

According to Defendant, the plea agreement should have been voided pursuant to the

contractual doctrine of “mutual mistake.” See id.

“In determining the rights of a defendant . . . under a plea agreement in a criminal

proceeding the courts have frequently looked to contract law analogies.” United States v.

Gamble, 917 F.2d 1280, 1282 (10th Cir. 1990) (citation, alteration, and internal quotation

marks omitted). Despite that general rule, a mutual sentencing error does not void a plea

agreement when the agreement is made “with the knowledge that the sentencing

recommendation is nonbinding.” United States v. Williams, 919 F.2d 1451, 1457 (10th

Cir. 1991); United States v. Barnes, 83 F.3d 934, 938-39 (7th Cir. 1996) (stating a similar

rule); United States v. Olveros-Orosco, 942 F.2d 644, 646 (9th Cir. 1991) (stating a
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similar rule). Courts have adopted that rule because the doctrine of mutual mistake voids

a contract only when the mistake involves a contract’s “essential terms.” Barnes, 83 F.3d

at 938. If the parties have knowingly left sentencing to the discretion of the judge, then

the sentence is not an “essential term” of the plea agreement. See Williams, 919 F.2d at

1457 (“If neither the plea agreement nor the court has guaranteed the defendant that the

plea agreement stipulations are binding, a defendant cannot claim undue surprise or that

the plea is rendered involuntary when the court exercises this power.”).

As noted above, both the plea agreement itself and the district judge during the

colloquy informed Defendant that the sentencing recommendation was not binding on the

court. Therefore, the plea agreement is not void pursuant to the doctrine of mutual

mistake.

Defendant next suggests that the agreement is void under the contractual doctrine

of frustration of purpose. See Appellant’s Opening Br. at 8-9. Although we have applied

that doctrine to plea agreements, see United States v. Bunner, 134 F.3d 1000, 1004 (10th

Cir. 1998), that doctrine requires, among other factors, that “the intervening event cannot

fairly be regarded as within the risks the frustrated party assumed under the contract,” id.

As stated above, Defendant assumed the risk that the district judge would impose a

sentence outside of the estimate provided in the plea agreement. That being so, the

parties’ sentencing mistake did not frustrate the purpose of the plea agreement.

 Defendant next argues that he should be able to withdraw his plea because his
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attorney’s mistake -- believing that the career offender enhancement would not apply --

constitutes ineffective assistance of counsel. See Appellant’s Opening Br. at 10. We

have previously refused to allow defendants to withdraw their plea agreements under

similar circumstances. See United States v. Rhodes, 913 F.2d 839, 843 (10th Cir. 1990)

(“The fact that the applicable Sentencing Guideline range was higher than defense

counsel estimated, however, does not demonstrate a violation of Federal Rule of Criminal

Procedure 11.”). Moreover, we have held that “a miscalculation or erroneous sentence

estimation by defense counsel is not a constitutionally deficient performance rising to the

level of ineffective assistance of counsel.” Gordon, 4 F.3d at 1570. In the circumstances,

Defendant’s argument is not well taken.

Finally, Defendant argues that he should be allowed to withdraw his plea because

the government acted in bad faith by “zealously” arguing for the enhancement (and

against the withdrawal of the plea agreement). See Appellant’s Opening Br. at 8. “[I]n

enforcing plea agreements, the government is held only to those promises that it actually

made to the defendant.” United States v. Peglera, 33 F.3d 412, 413 (4th Cir. 1994); see

also United States v. Furman, 112 F.3d 435, 439 (10th Cir. 1997) (“[O]bligations do not

issue from mere silence; we shall not impose duties on the government that are not an

express or implied part of its agreement with the defendant.”). Here, the government

never promised not to argue for a career offender enhancement. To the contrary, the plea

agreement states that it “does not preclude either party from presenting and arguing, for
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sentencing purposes, additional facts or factors not included herein which are relevant to

the guideline computation . . . or to sentencing in general. . . .” 1 Supp. App. Doc. 32 at

3. In the circumstances, the government’s decision to argue for the enhancement does not

require withdrawal of the plea agreement.

Taken together, the district judge did not abuse his discretion by refusing to allow

Defendant to withdraw his guilty plea.

B

Defendant next argues that the district judge erred by holding that Defendant

satisfied the requirements for the career offender enhancement. See Appellant’s Opening

Br. at 11-15. We review that decision de novo. See United States v. Bennett, 108 F.3d

1315, 1316 (10th Cir. 1997).

The Sentencing Guidelines enhance a defendant’s sentence if he or she is a career

offender:

A defendant is a career offender if (1) the defendant was at least

eighteen years old at the time the defendant committed the instant offense

of conviction, (2) the instant offense of conviction is a felony that is either a

crime of violence or a controlled substance offense, and (3) the defendant

has at least two prior felony convictions of either a crime of violence or a

controlled substance offense.

U.S.S.G. § 4B1.1. Defendant concedes that he satisfies the first two requirements, but

argues that at least two of his three escape and attempted escape convictions were not

“crime[s] of violence.” See Appellant’s Opening Br. at 11-15.

The Sentencing Guidelines define “crime of violence” as, among other things, any
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felony that “involves conduct that presents a serious potential risk of physical injury to

another.” U.S.S.G. § 4B1.2(a)(2). In United States v. Gosling, 39 F.3d 1140 (10th Cir.

1994), we held that an “escape conviction by its nature involves conduct that presents a

serious potential risk of physical injury to another. . . .” Id. at 1142-43. Defendant

argues, however, that Gosling applies only to escapes from physical custody (and, in

particular, jail as was at issue in Gosling). See Appellant’s Opening Br. at 12, 14. 

According to Defendant, he was not in physical custody during at least two of his escape

attempts and therefore Gosling does not govern this case. See Appellant’s Opening Br. at

12, 14.

Contrary to Defendant’s argument, we announced a per se rule in Gosling that

applies to all escape convictions regardless of the underlying facts. See 39 F.3d at 1142

(“[E]very escape scenario is a powder keg, which may or may not explode into violence

and result in physical injury to someone at any given time, but which always has the

serious potential to do so.”) (emphasis in original); see also United States v. Moudy, 132

F.3d 618, 620 (10th Cir. 1998) (“[A]n escape always constitutes conduct that presents a

serious potential risk of physical injury to another. . . .”) (citation and internal quotation

marks omitted); United States v. Mitchell, 113 F.3d 1528, 1533 n.2 (10th Cir. 1997)

(“Gosling still stands for the proposition that, regardless of the facts underlying a

particular escape, the offense of escape, by its nature, presents a serious potential risk of

injury to another and is thus properly characterized as a ‘crime of violence’”). We have
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applied that per se rule to non-jail escapes, including “nonviolent walkaways from

unsecured correctional facilities.” Id. at 1533 (internal quotation marks omitted). 

Although Defendant has presented a strong argument why escape should not constitute a

crime of violence when the escape is not from physical custody, we are bound by our

precedent which does not allow us to look at the facts of conviction. See id. at 1533 n.2. 

In the circumstances, Defendant must pursue his argument before the court sitting en

banc. Cf. United States v. Nichols, 169 F.3d 1255, 1261 (10th Cir. 1999) ("We cannot

overrule the judgment of another panel of this court. We are bound by the precedent of

prior panels absent en banc reconsideration or a superseding contrary decision by the

Supreme Court.") (citation and internal quotation marks omitted), cert. denied, No. 99-

5063, ___ S. Ct. ___, 1999 WL 462439 (U.S. Oct. 12, 1999).

The district court did not err by applying the career offender enhancement to

Defendant.

C.

Defendant argued below that a prior drug transaction did not constitute relevant

conduct with the current offense. The district court disagreed, combining the weight of

the previous and charged offenses to determine the drug quantity for sentencing. See 4

App. at 16-17, 19. On appeal, Defendant did not object to the district court’s decision on

this question in his opening brief. After the parties finished briefing the case, however,

we held in United States v. Santos, No. 98-1344 1999 WL 694275, *2 (10th Cir. Sept. 8,
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1999), that “drug quantities triggering the mandatory sentences prescribed in [21 U.S.C. §

841(b)] are determined exclusively by reference to the offense of conviction.” The

government concedes that, pursuant to Santos, the district court incorrectly determined

Defendant’s sentence range.

Ordinarily, the failure of a party to raise an issue in an opening brief waives that

issue. See United States v. Sandia, No. 98-2248, 1999 WL 638219, *2 n.3 (10th Cir.

Aug. 23, 1999). “Despite this rule, however, appellate courts may in their discretion

consider issues not properly raised in an opening brief.” Gambino v. Morris, 134 F.3d

156, 169 (3d Cir. 1998); see also Headrick v. Rockwell Intern. Corp., 24 F.3d 1272, 1278

(10th Cir. 1994) (noting that the general rule is subject to exceptions). We note three

factors that favor exercising our discretion to address the newly-raised issue in this case:

(1) Santos was decided after the parties filed their briefs; (2) the application of Santos

presents solely a question of law; and (3) in a Supplemental Brief filed on September 29,

1999, at p.5, the government noted the Defendant’s failure to raise this issue but stated

that “the government nevertheless would not oppose a remand in this case for resentencing consistent with the holding of Santos.” Cf. United States v. Ullah, 976 F.2d

509, 514 (9th Cir. 1992) (“We will review an issue not presented in an opening brief for

good cause shown or if failure to do so would result in manifest injustice.”) (citation and

internal quotation marks omitted). We are persuaded that we should address the newlyraised issue. We therefore vacate Defendant’s sentence and remand for re-sentencing in
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light of Santos.

AFFIRMED IN PART, REVERSED IN PART, AND REMANDED FOR RESENTENCING

Entered for the Court

William J. Holloway, Jr.

Circuit Judge