OPINION
PELANDER, Chief Judge.
¶ 1 After a jury trial, appellant Jesus Ale-man was convicted of two counts of second-degree murder, four counts of aggravated assault, and three counts of aggravated driving while under the influence of an intoxicant (DUI). The trial court sentenced him to a combination of concurrent and consecutive prison terms totaling eighteen years on the murder and aggravated assault convictions, and a consecutive, ten-year term of supervised probation, a condition of which was a four-month prison term, on the aggravated DUI convictions. Aleman received mitigated, ten-year, concurrent sentences on the [235]*235murder convictions but slightly aggravated, eight-year sentences on the aggravated assault convictions.
¶2 In the sole issue raised on appeal, Aleman contends the trial court erroneously denied his pretrial motion to suppress evidence of blood test results, arguing A.R.S. § 28-673(C) is unconstitutional and, even if it is not, the blood draw pursuant to that statute was illegal. We do not address that issue because we conclude the trial court did not err in alternatively finding the blood draw authorized under A.R.S. § 28-1388(E). We also reject Aleman’s challenge to his aggravated sentences, raised in supplemental briefing and based on Blakely v. Washington, 542 U.S. 296, 124 S.Ct. 2531, 159 L.Ed.2d 403 (2004). Accordingly, we affirm.
BACKGROUND
¶ 3 “In reviewing the denial of a motion to suppress evidence, we view the facts in the light most favorable to upholding the trial court’s ruling ... [and consider] only the evidence presented at the suppression hearing.” State v. Wyman, 197 Ariz. 10, ¶ 2, 3 P.3d 392, 394 (App.2000); see also State v. Spears, 184 Ariz. 277, 284, 908 P.2d 1062, 1069 (1996). On April 29, 2000, a car driven by Aleman crossed the centerline of a two-lane highway and collided head-on with an approaching minivan. Aleman was seriously injured and two passengers in his car were killed in the collision. The four family-member occupants of the minivan, two of whom were minors, were seriously injured. Law enforcement officers who responded to the accident scene found Aleman in and out of consciousness and trapped behind his car’s steering wheel. Fire department personnel had to cut Aleman out of the car. The two passengers in Aleman’s car were pronounced dead at the scene.
¶ 4 One officer testified that he had seen open alcoholic beverage containers in the car and on the roadway and that fire department personnel had told him they had detected the odor of an intoxicating beverage on Aleman’s breath and person. Another officer testified he had seen beer cans in Aleman’s car and had smelled a “distinct strong odor” of alcohol coming from Aleman. He also testified that from just outside the car by the driver’s door, he had noticed the odor of alcohol became stronger when Aleman attempted to speak to the passenger in the front seat. A supervising officer at the scene also detected an odor of alcohol from Aleman’s car and was told by another officer that Aleman was “under the influence of alcohol.”
¶ 5 Aleman was transported to a hospital, where he became “extremely uncooperative.” A hospital phlebotomist testified that Aleman had attempted to get off of the examination table, and it had taken about eight people to hold him down. The phlebotomist considered this a severe trauma case and testified that blood draws are “mandatory” for every trauma patient seen at the hospital. The hospital’s trauma pack contained between five to seven blood vials. Regardless of the total number of vials, every pack contained two gray-topped vials that were specifically and routinely drawn for law enforcement purposes in every trauma case. The phlebo-tomist testified that she had drawn a “full trauma pack” on Aleman and that the two gray-topped vials were set aside in a locked area for law enforcement purposes.
¶ 6 Within a few hours, Officer Encisco of the Pinal County Sheriffs- Department retrieved the two gray-topped blood vials from the hospital, took them to the sheriffs office, and stored them for evidence. The supervising officer testified that he had instructed Encisco to retrieve Aleman’s blood sample from the hospital after another officer had informed the supervisor that emergency personnel had smelled an odor of alcohol on Aleman.
¶ 7 Before trial, Aleman moved to suppress evidence of the blood test results,1 arguing the blood samples had been obtained without a warrant, in violation of his Fourth Amendment rights. Following the suppression hearing, the trial court denied Aleman’s mo[236]*236tion, finding that law enforcement had properly obtained his blood sample pursuant to § 28-673(C) and, alternatively, § 28-1388(E). This appeal followed Aleman’s ensuing convictions and sentencing.
DISCUSSION
1. Motion to suppress
¶ 8 “We review the trial court’s ruling on a motion to suppress for clear and manifest error.” State v. Clary, 196 Ariz. 610, ¶ 8, 2 P.3d 1255, 1256-57 (App.2000); see also State v. Howard, 163 Ariz. 47, 49, 785 P.2d 1235, 1237 (App.1989). In his opening brief, Aleman only challenges the trial court’s reliance on § 28-673(0 as a basis for denying the motion to suppress.2 Relying on several out-of-state eases,3 he argues that the statute is unconstitutional because it does not require “probable cause to believe that a crime has been committed before conducting a [warrantless] search which involves the taking of blood from a person.” The state does not respond to Aleman’s constitutional argument at all, but rather urges us to uphold the trial court’s ruling under § 28-1388(E), which the court cited as an alternative basis for denial of the motion to suppress.
¶ 9 In his reply brief, however, Ale-man argues that § 28-1388(E) “does not apply in this case because no officer claimed to have had probable cause to arrest [Aleman] at the time Officer Encisco was requested to retrieve the blood from the hospital.” Generally, an appellant may not raise issues for the first time in the reply brief. See State v. Watson, 198 Ariz. 48, ¶ 4, 6 P.3d 752, 755 (App.2000); State v. Cohen, 191 Ariz. 471, ¶ 13, 957 P.2d 1014, 1017 (App.1998). And, if the appellant does so, “[a]n appellate court can ‘disregard [the new] substantive issues raised.’ ” Id., quoting State v. Cannon, 148 Ariz. 72, 79, 713 P.2d 273, 280 (1985).
¶ 10 Although Aleman did not challenge or otherwise address § 28-1388(E) in his opening brief, in our discretion we address the issue of whether the trial court’s ruling is supportable under that statute. See State v. Myers, 117 Ariz. 79, 87, 570 P.2d 1252, 1260 (1977); Ariz. R.Crim. P. 31.13(c)(3), 17 A.R.S. (reply brief may respond “to questions of law or fact raised by the appellee’s brief’); cf. State v. Shipman & Sweeney, 208 Ariz. 474, n. 2, 94 P.3d 1169, 1171 n. 2 (App.2004) (appellate court may consider merits of dispositive issue even if not raised in opening brief). And, we address that issue first because courts should decide cases on nonconstitutional grounds if possible and should determine a statute’s constitutionality only if absolutely necessary. See Aitken v. Indus. Comm’n, 183 Ariz. 387, 389, 904 P.2d 456, 458 (1995); State v. Yslas, 139 Ariz. 60, 63, 676 P.2d 1118, 1121 (1984).
¶ 11 Under Arizona law, absent express consent, police may obtain a DUI suspect’s blood sample only pursuant to a valid search warrant, Arizona’s implied consent law, A.R.S. § 28-1321, or the medical blood draw exception in § 28-1388(E). See State v. Cocio, 147 Ariz. 277, 283-84, 709 P.2d 1336, 1344-45 (1985); see also State v. Estrada, 209 Ariz. 287, ¶ 11, 100 P.3d 452, 455 (App.2004). The state did not obtain a search warrant here and now relies solely on § 28-1388(E), which provides:
Notwithstanding any other law, if a law enforcement officer has probable cause to believe that a person has violated [A.R.S.] § 28-1381 and a sample of blood, urine or other bodily substance is taken from that person for any reason, a portion of that sample sufficient for analysis shall be provided to a law enforcement officer if requested for law enforcement purposes.4
[237]*237¶ 12 In Codo, our supreme court addressed the constitutionality and application of the predecessor statute, former A.R.S. § 28-692(M). The court held that, under the statute, removal of blood without a warrant from a person suspected of DUI is constitutionally permissible if there is “probable cause ... to believe the person has [been driving under the influence of an intoxicant], ... exigent circumstances are present and, ... the blood is drawn for medical purposes by medical personnel.” 147 Ariz. at 286, 709 P.2d at 1345; see also Clary, 196 Ariz. 610, ¶¶ 10-11, 2 P.3d at 1257; Lind v. Superior Court, 191 Ariz. 233, ¶ 17, 954 P.2d 1058, 1062 (App.1998) (holding that hospital blood sample falls within permissible scope of medical-purpose statute when blood is drawn before showing of probable cause or arrest, amount of blood drawn is more than that needed for medical purposes at the time, and extra blood is set aside for possible law-enforcement use). The court in Codo also ruled that the statutory language “‘taken from that person for any reason’ ” means that “the blood must be drawn by medical personnel for any medical reason so as not to conflict with the orderly administration of care to those injured.” 147 Ariz. at 286, 709 P.2d at 1345, quoting former § 28-692(M).
¶ 13 The record reflects, and Aleman does not dispute, that his blood samples were drawn by medical personnel (a hospital phlebotomist) for medical purposes. See Cocio, 147 Ariz. at 286, 709 P.2d at 1345; Lind, 191 Ariz. 233, ¶ 17, 954 P.2d at 1062 (holding that “the hospital draws the entire sample ‘for medical purposes’ within the meaning of the statute, and the officer’s subsequent statutory request for a portion of the sample does not violate any rights of a defendant”); Howard, 163 Ariz. at 50, 785 P.2d at 1238 (“officer’s indication that he wanted a blood sample prior to the [hospital] technician’s drawing the blood does not alter the fact of its being taken for medical purposes”); cf. Estrada. The record also reflects that the hospital furnished the two gray-topped blood vials to Officer Encisco pursuant to his request for a sample for law enforcement purposes, as § 28-1388(E) obligated the hospital to do. See Lind, 191 Ariz. 233, ¶ 19, 954 P.2d at 1062. Aleman does not contend otherwise.
¶ 14 In conjunction with his challenge to § 28-673(C), however, Aleman argues “exigent circumstances clearly did not exist because police had waited well over two hours before requesting blood from the hospital,” during which time they could have obtained a search warrant. Even had Aleman presented this argument in connection with § 28-1388(E), the pertinent Arizona eases clearly refute it. See Cocio, 147 Ariz. at 286, 709 P.2d at 1345 (noting that “[t]he highly evanescent nature of alcohol in the defendant’s blood stream guaranteed that the alcohol would dissipate oyer a relatively short period of time” and finding, “because of the destructability of the evidence, exigent circumstances existed”); Lind, 191 Ariz. 233, ¶ 20, 954 P.2d at 1062 (based on Cocio, declining to address whether “a blood sample presents an exigent circumstance” even when police requested portion of blood sample previously drawn by hospital for medical purposes); Howard, 163 Ariz. at 50, 785 P.2d at 1238.
¶ 15 The only significant issue, therefore, is whether the officers had probable cause to believe that Aleman had violated the DUI statute at the time they requested and obtained the blood samples from the hospital. “Probable cause is something less than the proof needed to convict and something more than suspicions.” Howard, 163 Ariz. at 50, 785 P.2d at 1238; cf. Smith v. Ariz. Dep’t of Transp., 146 Ariz. 430, 432, 706 P.2d 756, 758 (App.1985) (probable cause does not require law enforcement “to show that the operator was in fact under the influence”; “[o]nly the probability and not a prima facie showing of intoxication is the standard for probable cause”). In addition, probable cause exists if the collective knowledge of the officers establishes that they had “reasonably trustworthy information of facts and circumstances which are sufficient in themselves to lead a reasonable [person] to believe an offense ... has been committed and that the person to be arrested ... did commit it.” State v. Richards, 110 Ariz. 290, 291, 518 P.2d 113, 114 (1974); see also State v. Keener, 206 Ariz. 29, ¶ 14, 75 P.3d 119, 122 (App.2003) (“[O]ur courts have long recog[238]*238nized that collective knowledge of law enforcement officers may be considered to establish probable cause.”). We apply the law to the facts de novo in determining whether probable cause existed. See Ornelas v. United States, 517 U.S. 690, 699, 116 S.Ct. 1657, 1663, 134 L.Ed.2d 911, 920 (1996); State ex rel. McDougall v. Superior Court, 191 Ariz. 182, 186, 953 P.2d 926, 930 (App.1997).
¶ 16 In addition to observing open beer containers in and around Aleman’s car, emergency personnel who attended to him at the scene told police they had detected the odor of intoxicants on his breath. Moreover, the “distinct strong odor” of alcohol emanating from Aleman’s position in the driver’s seat became even stronger when he attempted to speak to the deceased front-seat passenger. The accident occurred in broad daylight when Aleman crossed the centerline and collided head-on with the oncoming van. The record reflects no circumstances other than Aleman’s impairment to explain the collision.
¶ 17 Officer Encisco’s testimony that he personally had not had “any evidence that Mr. Aleman had committed a crime” at the time Encisco retrieved the blood samples from the hospital is of no moment. Cf. McDougall, 191 Ariz. at 186, 953 P.2d at 930 (officer might have “probable cause to arrest even though he thought he did not”). As noted above, the collective knowledge of all of the officers may establish probable cause and in fact did so here.
¶ 18 In sum, the trial court did not clearly and manifestly err in implicitly finding the officers had had probable cause to believe Aleman had been driving while under the influence of an intoxicant, as required by § 28-1388(E), and consequently denying Ale-man’s motion to suppress based on that statute.5 See, e.g., State v. Kemp, 168 Ariz. 334, 813 P.2d 315 (1991) (trial court properly admitted defendant’s blood test results after he had driven his car into path of oncoming vehicle, caused death of other driver, smelled of alcohol at the scene and during questioning at hospital, even though defendant was not under arrest at that time); State v. Zava-la, 136 Ariz. 356, 666 P.2d 456 (1983) (officer had probable cause to make DUI arrest after officer found defendant unconscious in vehicle parked off roadway and noted strong odor of alcoholic beverage on him and in vehicle); Howard, 163 Ariz. at 49-50, 785 P.2d at 1237-38 (sufficient evidence supported probable cause finding when defendant’s car rear-ended other vehicle, and paramedic at scene “detected an odor of alcohol that could have been produced by [defendant’s] consumption of alcohol or something else associated with [his] injuries,” despite defendant’s contention that “none of the officers determined independently that there was alcohol on [his] breath”).
II. Blakely issues
¶ 19 After this appeal came at issue, the United States Supreme Court decided Blakely. Thereafter, pursuant to Aleman’s motion and this court’s order, the parties filed supplemental briefs addressing whether and how Blakely affects this case. We now address those issues.
¶20 As noted earlier, the trial court imposed slightly aggravated, eight-year sentences on the four aggravated assault convictions. Those convictions related to the four occupants, two of whom were minors, of the oncoming minivan with which Aleman’s vehicle collided. In imposing those sentences, the trial court found the following aggravating circumstances: that Aleman previously had been convicted of at least one DUI and had another DUI charge pending; that two of the victims were minors; that multiple victims were involved; that Aleman’s driver’s license had been suspended or revoked at the time of the accident; and that Aleman had [239]*239recognized that he was too drunk to drive. In mitigation, the trial court found that Ale-man had minor children to support, that he had no known prior felony convictions, and that he appeared to be remorseful. After considering those aggravating and mitigating circumstances, the trial court determined that a slightly aggravated sentence was appropriate on each of the four aggravated assault convictions.
¶21 In Apprendi v. New Jersey, 530 U.S. 466, 490, 120 S.Ct. 2348, 2362-63, 147 L.Ed.2d 435, 455 (2000), the Supreme Court held that, “[o]ther than the fact of a prior conviction, any fact that increases the penalty for a crime beyond the prescribed statutory maximum must be submitted to a jury, and proved beyond a reasonable doubt.” In Blakely, the Court extended that ruling and held that “the ‘statutory maximum’ for Apprendi purposes is the maximum sentence a judge may impose solely on the basis of the facts reflected in the jury verdict or admitted by the defendant.” 542 U.S. at -, 124 S.Ct. at 2537. The Court explained:
In other words, the relevant “statutory maximum” is not the maximum sentence a judge may impose after finding additional facts, but the maximum he may impose without any additional findings. When a judge inflicts punishment that the jury’s verdict alone does not allow, the jury has not found all the facts “which the law makes essential to the punishment,” and the judge exceeds his proper authority.
Id. (citation omitted), quoting 1 J. Bishop, Criminal Procedure § 87 at 55 (2d ed. 1872); see also United States v. Booker, — U.S. -, 125 S.Ct. 738, 160 L.Ed.2d 621 (2005).
¶ 22 As Aleman correctly points out, new appellate opinions announcing a change in the law generally apply to any cases that are pending at the time the opinion is filed. See Schriro v. Summerlin, 542 U.S. 348, -, 124 S.Ct. 2519, 2522, 159 L.Ed.2d 442 (2004); Griffith v. Kentucky, 479 U.S. 314, 328, 107 S.Ct. 708, 716, 93 L.Ed.2d 649, 661 (1987). Thus, Blakely applies to this case. See State v. Henderson, 209 Ariz. 300, ¶ 9, 100 P.3d 911, 914 (App.2004); State v. Miranda-Cabrera, 209 Ariz. 220, ¶ 26, 99 P.3d 35, 41 (App.2004). The state does not argue otherwise.6
¶23 Relying on Apprendi and Blakely, Aleman contends the trial court exceeded its authority by imposing aggravated sentences based on facts not found by the jury or admitted by him. Those aggravated sentences, Aleman argues, exceeded the “statutory maximum” as defined in Blakely and violated his Sixth Amendment right to a trial by jury on the aggravating circumstances. Aleman further argues that, because no aggravating factors were charged in the indictment and because the trial court supposedly has no legal authority to empanel a new jury to determine any such factors,7 he “is entitled to be resentenced to no more than the presumptive term of imprisonment” on the aggravated assault convictions.
[240]*240¶ 24 Preliminarily, relying on both Arizona8 and federal cases,9 the state contends Aleman waived any Sixth Amendment challenge to his aggravated sentences under Blakely because the foundation for his claim existed well before Blakely was decided, but he failed to present the argument at sentencing or in his opening brief. The authorities the state cites clearly support its waiver argument. But waiver is a procedural concept that courts do not rigidly employ in mechanical fashion. See State v. Smith, 203 Ariz. 75, ¶ 12, 50 P.3d 825, 829 (2002) (reviewing court may choose to address argument otherwise waived). And this court has stated that Blakely error, “unless harmless, constitutes fundamental error” which is not waived despite a party’s failure to timely raise it. State v. Resendis-Felix, 209 Ariz. 292, ¶ 6, 100 P.3d 457, 459 (App.2004); see also State v. Munninger, 209 Ariz. 473, ¶¶ 7-12, 104 P.3d 204, 208-09 (App.2005) (no waiver of Blakely issue despite not having been raised below); Henderson, 209 Ariz. 300, ¶ 9, 100 P.3d at 914 (addressing alleged Blakely error even though “[n]either party requested that a jury determine the aggravators beyond a reasonable doubt”); cf. Miranda-Cabrera, 209 Ariz. 220, ¶ 26, 99 P.3d at 41 (addressing Blakely issue on the merits even though defendant “fail[ed] to raise it at the sentencing hearing or in his opening brief’). Accordingly, in our discretion we address the supplemental Blakely issues the parties have raised. See Resendis-Felix, 209 Ariz. 292, ¶ 6, 100 P.3d at 459.
¶ 25 Aside from its waiver argument, the state also contends Aleman’s slightly aggravated sentences did not violate the Sixth Amendment because he “admitted at sentencing the fact that he had a prior DUI conviction — a conviction that fell within the exception announced in Apprendi.” As noted above, the Supreme Court in Apprendi excepted prior convictions from the general principle that facts that increase the penalty for a crime must be presented to a jury and proved beyond a reasonable doubt. 530 U.S. at 490, 120 S.Ct. at 2362-63, 147 L.Ed.2d at 455; see State v. Ring, 204 Ariz. 534, ¶¶ 64-66, 65 P.3d 915, 939 (2003) (Ring III). And, as the state correctly points out, “Blakely did not alter Apprendi’s exception of the fact of a prior conviction from the dictates of the Sixth Amendment trial-by-jury requirement.” See Blakely, 542 U.S. at —, 124 S.Ct. at 2536 (applying, but not altering, “the rule we expressed in Apprendi” which expressly excluded “‘the fact of a prior conviction’ ”), quoting Apprendi, 530 U.S. at 490, 120 S.Ct. at 2362-63, 147 L.Ed.2d at 455; State v. Cons, 208 Ariz. 409, ¶ 15, n. 3, 94 P.3d 609, 614-15, 613 n. 3 (App.2004).10
[241]*241¶ 26 Moreover, Apprendi’s exception of the “fact” of a prior conviction is not limited solely to a prior felony conviction. Rather, the exception encompasses any conviction entered in a Sixth Amendment-compliant manner. See Goldsberry v. State, 821 N.E.2d 447, 461 (Ind.Ct.App.2005) (under Blakely, trial court may rely on prior misdemeanor convictions as an aggravator without a finding by jury); State v. Kendall, 274 Kan. 1003, 58 P.3d 660, 667 (2002) (prior misdemeanor DUI convictions used to enhance instant DUI conviction); State v. Van Buren, 123 Wash.App. 634, 98 P.3d 1235, 1240 (2004) (Blakely does not preclude trial court from considering as aggravator defendant’s criminal history, including misdemeanor convictions); see also United States v. Smalley, 294 F.3d 1030, 1033 (8th Cir.2002) (juvenile adjudications can properly be characterized as prior convictions for Apprendi purposes). Aleman does not argue otherwise, nor does he dispute that at the time of his prior conviction, a person charged with misdemeanor DUI in Arizona had the right to a jury trial, and the burden of proof was beyond a reasonable doubt. See Rothweiler v. Superior Court, 100 Ariz. 37, 47, 410 P.2d 479, 486 (1966); A.R.S. § 28-1381(F) (at arraignment, court shall inform DUI defendant that he or she “may request a trial by jury and that the request, if made, shall be granted”); but cf. Derendal v. Griffith, 209 Ariz. 416, 104 P.3d 147 (2005) (overruling Rothweiler and holding that drag racing is not a jury-eligible offense).
¶ 27 As noted earlier, Aleman admitted at sentencing the fact that he had a prior DUI conviction.11 The state argues, “[bjased on the fact of the Apprendi-exempt prior conviction, [Aleman] became constitutionally eligible to receive a prison term of up to 15 years.” See § 13 — 604(I).12 According to the state, “under the Sixth Amendment and the Apprendi/Blakely rule, the fact of Aleman’s prior conviction, standing alone, was sufficient to support the imposition of a sentence greater than the presumptive.”
¶ 28 Some decisions by Division One of this court support the state’s “one-is-enough” argument. See State v. Estrada, 210 Ariz. 111, ¶ 1, 108 P.3d 261 (App.2005) (“defendant whose prior convictions constitute an aggravating circumstance” is not constitutionally entitled “to jury findings on the existence of any additional aggravating factors”); State v. Martinez, 209 Ariz. 280, ¶ 1, 100 P.3d 30, 31-32 (App.2004) (holding that “a judge’s imposition of an aggravated sentence that falls within the range authorized by a jury’s verdict comports with Blakely; a jury need not find every aggravator upon which a sentencing judge relies”); State ex rel. Smith v. Conn, 209 Ariz. 195, ¶ 12, 98 P.3d 881, 884 (App.2004) (if jury finds “any alleged aggravating factor” was proven, trial court may consider “[o]ther factors in aggravation or mitigation” and impose a sentence anywhere “within the statutory range for aggravated sentences”); cf. Miranda-Cabrera, 209 Ariz. 220, ¶ 34, 99 P.3d at 43 (“[W]hether the sentencing scheme is determinate or indeterminate, once the jury has found the facts necessary to impose a sentence within a statutory range, a judge may consider any additional sentencing factors in imposing a lesser sentence than the statute authorizes.”).
¶ 29 This court, however, has rejected the state’s broad argument that, even when a trial court finds both aggravating and mitigating factors, a single Blakely-compliant or -exempt aggravating factor authorizes the court to “find additional aggravating factors under the relaxed, pre-Blakely rules found in [242]*242§ 13-702.” State v. Timmons, 209 Ariz. 403, ¶ 11, 103 P.3d 315, 319 (App.2005); but see State v. Chiappetta, 210 Ariz. 40, 107 P.3d 366 (App.2005) (Espinosa, J.). Accordingly, this court declined to follow the contrary view espoused in Martinez and Conn. Tim-mons, 209 Ariz. 403, ¶¶ 6-7, 103 P.3d at 318. Similarly, other panels of Division One also have rejected Martinez’s “one-is-enough approach,” refusing to “automatically uphold sentences based on the presence of a single aggravating factor when the sentencing judge relied on others not properly found by a jury.” Munninger, 209 Ariz. 473, ¶¶ 27, 30, 104 P.3d at 213, 214; see also State v. Pitre, 210 Ariz. 93, ¶ 13, 107 P.3d 939 (App.2005) (rejecting state’s contention that “a sole valid factor under Blakely opens the door and allows a court without a jury to consider any other factors that do not fit within Blakely’s confines”). Thus, when a trial court finds mitigating factors and multiple aggravating factors, only some of which are Blakely-com-pliant or -exempt, “Arizona law does not authorize an aggravated sentence upon the mere finding of one aggravating circumstance but, rather, authorizes an aggravated sentence only if all of the aggravating circumstances taken together outweigh the mitigating factors found by the court.” State v. Alire, 209 Ariz. 517, ¶ 12, 105 P.3d 163, 165-66 (App.2005).13
¶ 30 Again, Aleman’s prior DUI conviction was Blakely-exempt and, therefore, properly considered in aggravation. Likewise, the trial court properly considered two other factors that were Blakely-compliant because they were “inherent in the jury’s verdicts.” State v. Oaks, 209 Ariz. 432, ¶ 23, 104 P.3d 163, 168 (App.2004). The trial court cited the involvement of multiple victims as an aggravating factor. By finding Aleman guilty on the four charges of aggravated assault, the jury implicitly found there had been multiple victims. And, in its guilty verdicts on the DUI charges, the jury specifically found that at the time of the offenses, Aleman’s license was “suspended, canceled, refused or revoked.”14 Our inquiry does not end there, however, because the trial court found other aggravating factors and weighed them against the mitigating factors it also found. See Munninger, 209 Ariz. 473, ¶ 25, 104 P.3d at 213; Timmons, 209 Ariz. 403, ¶ 11, 103 P.3d at 318-19. Nonetheless, we conclude the trial court’s consideration of the other aggravating factors either did not violate Blakely or was harmless.
¶ 31 No Sixth Amendment violation occurs if a trial comet aggravates a sentence based on a fact “admitted by the defendant.” Blakely, 542 U.S. at —, 124 S.Ct. at 2537; see also Ring III, 204 Ariz. 534, ¶ 93, 65 P.3d at 944 (“In cases in which a defendant stipulates, confesses or admits to facts sufficient to establish an aggravating circumstance, we will regard that factor as established.”). Based on undisputed evidence at trial, Ale-man conceded at sentencing that “he knew he was impaired and shouldn’t have been driving” at the time of the accident. Thus, the trial court’s reliance on that acknowl[243]*243edged, uncontested fact arguably did not violate Blakely,15
¶ 32 Moreover, any alleged Blakely error relating to that factor or the other aggravating factors was harmless. Arizona courts and all federal circuit courts have concluded that Apprendi or Blakely error is subject to harmless error analysis. See State v. Sepahi, 206 Ariz. 321, n. 3, 78 P.3d 732, 735 n. 3 (2003) (“any Apprendi error would be harmless”); Henderson, 209 Ariz. 300, ¶¶ 22, 33, 100 P.3d at 917, 921-22 (noting that “every federal circuit court has ... been uniform in holding that Apprendi error can be reviewed for harmless error” and that “other courts, since Blakely, have also applied a harmless error analysis to Blakely violations”); Resendis-Felix, 209 Ariz. 292, ¶¶ 8-10, 100 P.3d at 460; Martinez, 209 Ariz. 280, ¶ 1, 100 P.3d at 31-32 (holding that “Blakely error is subject to harmless error or fundamental error analysis and may or may not require reversal based on the facts of a particular case”); Miranda-Cabrera, 209 Ariz. 220, ¶ 30, 99 P.3d at 42 (even assuming defendant’s trial testimony did not qualify as admissions for sentencing purposes, trial court’s enhancement of sentencing range without “separate and specific [jury] finding” that defendant had directed his conduct at a child was harmless error).
¶33 The evidence indisputably showed that two of the victims were minors, and their young ages were specifically referred to at sentencing without contradiction. Thus, “no reasonable jury could have concluded differently than the trial judge concluded. Henderson, 209 Ariz. 300, ¶ 41, 100 P.3d at 923. And both the prosecutor and the trial court noted at sentencing, without objection or dispute, that at the time of the offenses Aleman had not only a prior DUI conviction, but also a pending DUI charge on which he later was convicted. Finally, none of the aggravating factors involved “an inherently subjective determination.” Timmons, 209 Ariz. 403, ¶ 14, 103 P.3d at 319; see also Oaks, 209 Ariz. 432, ¶ 23, 104 P.3d at 168.
¶34 In short, “we have no difficulty in concluding that on the record in this ease no reasonable jury could have concluded differently than the trial judge concluded” on these other aggravating circumstances the trial court cited. Henderson, 209 Ariz. 300, ¶ 41, 100 P.3d at 923. And, although the trial court also found some mitigating factors and weighed them against the aggravating factors, based on the particular factors found and the slightly aggravated sentence the court imposed (a mere six months above the presumptive term), we conclude beyond a reasonable doubt that any alleged Blakely error “did not contribute to or affect the sentencing outcome here.” Resendis-Felix, 209 Ariz. 292, ¶ 11, 100 P.3d at 460. Thus, any alleged Blakely error was harmless beyond a reasonable doubt.
DISPOSITION
¶35 Aleman’s convictions and sentences are affirmed.