¶ 1 The State charged Kenneth Linville Jr. with leading a wave of burglaries throughout Thurston County. The State did so by charging Linville with one count of "leading organized crime," in violation of Washington's Criminal Profiteering Act (CPA), RCW 9A.82.060(l)(a), plus 137 other offenses. Some of those 137 other offenses were crimes listed in RCW 9A.82.010(4) as predicate offenses, which, when combined, form the requisite "pattern of criminal profiteering" on which the umbrella crime called "leading organized crime" is based. But some of these 137 other offenses were not listed in RCW 9A.82.010(4) as predicate crimes at all.
¶ 2 The question in this case is whether the CPA's "joinder bar" rule, RCW 9A.82.085, permits both predicate crimes and nonpredicate crimes to be joined in a single "leading organized crime" information. That joinder bar statute says, "The [S]tate is barred from joining any offense other than the offense alleged to be part of the pattern of criminal profiteering activity" in a single prosecution like this one for leading organized crime. Id. Linville argues that this statute bars the State from joining charges outside of the predicated offenses listed in RCW 9A.82.010(4) in such a prosecution. Linville continues that because defense counsel did not move for severance of the unlisted offenses based on RCW 9A.82.085, he received ineffective assistance of counsel. The State argues that RCW 9A.82.085 does not limit joinder to predicate offenses, as long as the unlisted offenses form part of the "pattern."
¶ 3 The CPA's language supports Linville's interpretation, not the State's. The comparable federal RICO1 statute's language supports Linville's interpretation, not the State's. And United States Supreme Court decisions interpreting the comparable federal RICO statute's language support Linville's interpretation, not the State's. We therefore agree with the Court of Appeals' analysis that unlisted crimes cannot be joined as part of a "pattern of criminal profiteering activity."
¶ 4 Nevertheless, on this record, which is devoid of defense counsel's reasons (or lack of reasons) for choosing to defend against these crimes in one prosecution rather than several, Linville fails to show ineffective assistance of counsel. We therefore reverse and remand to the Court of Appeals for further proceedings in that court.
FACTS
¶ 5 The State charged Linville with leading organized crime, RCW 9A.82.060, plus 137 other crimes.2 Linville's defense counsel *844moved to sever the charges into a series of trials under Criminal Rule (CrR) 4.4's discretionary severance standard. 1 Verbatim Report of Proceedings (May 18, 2015) at 26-34. The trial court denied this motion because defense counsel failed to show specific prejudice and hence severance was not necessary. Id. at 49-50. In doing so, the trial court recognized that "the first count of leading organized crime" explained why there were "so many crimes that are charged in this particular case." Id. at 50.
¶ 6 The jury convicted Linville on all counts except one: possession of a controlled substance. Linville appealed these convictions on a number of grounds, including ineffective assistance of counsel. Linville argued that his counsel's performance was deficient because he failed to object to the joinder of charges not enumerated in RCW 9A.82.010(4), despite the mandatory "joinder bar" of RCW 9A.82.085.
¶ 7 The Court of Appeals agreed with Linville and reversed. State v. Linville, 199 Wash.App. 461, 400 P.3d 333 (2017). It held that defense counsel's performance was ineffective because he failed to object to the joinder of charges that are not included in RCW 9A.82.010(4)'s list as acts of "criminal profiteering." Id. at 465-71, 400 P.3d 333. We granted review, State v. Linville, 189 Wash.2d 1016, 404 P.3d 486 (2017), and reverse the Court of Appeals.
STANDARD OF REVIEW
¶ 8 To prevail on a claim of ineffective assistance, Linville must show that his counsel's performance fell below an objective standard of reasonableness and that he was prejudiced by the deficient performance. Strickland v. Washington, 466 U.S. 668, 688, 104 S.Ct. 2052, 80 L.Ed.2d 674 (1984). "Because claims of ineffective assistance of counsel present mixed questions of law and fact, we review them de novo." In re Pers. Restraint of Brett, 142 Wash.2d 868, 873, 16 P.3d 601 (2001). If there were factual findings concerning, for example, defense counsel's strategy or tactics, we would review them for "substantial evidence." Id. But "the legal conclusions flowing from such findings and testimony are reviewed de novo." Id. at 873-74, 16 P.3d 601.
ANALYSIS
¶ 9 In order to evaluate Linville's ineffective assistance of counsel claim, we must first determine whether the CPA's "joinder bar" allows unlisted crimes to be joined with listed CPA predicate crimes in a single "leading organized crime" prosecution.
I. The CPA's language bars joinder of unlisted crimes as predicates on which the pattern of profiteering is based
¶ 10 The State charged Linville with "leading organized crime," in violation of RCW 9A.82.060(1)(a), plus 137 other offenses. "Leading organized crime" is defined in our CPA as "[i]ntentionally organizing ... any three or more persons with the intent to engage in a pattern of criminal profiteering activity ...." RCW 9A.82.060(1)(a) (emphasis added). "Criminal profiteering" is then defined in RCW 9A.82.010(4) ; that statute contains an exclusive list of crimes that fit within the definition of "criminal profiteering."3 A "pattern of criminal profiteering activity,"
*845in turn, is defined as "at least three acts of criminal profiteering " that are related in certain specific ways. RCW 9A.82.010(12) (emphasis added).
¶ 11 The State can join all predicate acts of "criminal profiteering" that form part of the "pattern" in a single case. But it cannot join any other crimes in that same case: under RCW 9A.82.085, the "joinder bar," "the [S]tate is barred from joining any offense other than the offenses alleged to be part of the pattern of criminal profiteering activity."
¶ 12 That brings us to the critical question in this case: Does "at least three acts of criminal profiteering " mean the State can charge more than three acts of criminal profiteering as part of the "pattern"? Or does it mean that the State can also charge other, unlisted, non-criminal-profiteering acts as part of the "pattern"? In other words, is the statutory list of predicate crimes just illustrative, allowing the State to tag any other illegalities as predicate "profiteering" crimes, despite the fact that the legislature excluded them from the list?
¶ 13 Linville argues that the list of predicate profiteering crimes is exclusive, that the "pattern of criminal profiteering activity" must be based on three or more of those crimes, and that the legislature excluded other crimes from that list on purpose. Linville therefore concludes that RCW 9A.82.085 bars the State from joining offenses not listed in RCW 9A.82.010(4) in the "pattern of criminal profiteering activity." The State argues that even crimes omitted from the CPA's list of profiteering activity can be charged as part of the "pattern of criminal profiteering activity." The State therefore concludes that all sorts of unenumerated offenses can form part of the "pattern of criminal profiteering activity" and be joined with the statutory-predicate-based profiteering activity despite the joinder bar.
¶ 14 This case thus presents a question of statutory interpretation.
¶ 15 The first controlling rule of statutory interpretation in a situation like this is "expressio unius est exclusio alterius"-the express inclusion of specific items in a class impliedly excludes other such items that are not mentioned. In re Det. of Williams, 147 Wash.2d 476, 491, 55 P.3d 597 (2002). Here, "criminal profiteering" is defined in RCW 9A.82.010(4), a statute that contains an exclusive list of 46 crimes. Under the interpretive rule of "expressio unius," all other crimes were impliedly excluded. Because of that legislative decision, those other crimes cannot be considered profiteering crimes.
¶ 16 A "pattern of criminal profiteering activity" is then defined by reference to that exclusive list of 46 crimes as "at least three acts of criminal profiteering " that are related in very specific ways. RCW 9A.82.010(12) (emphasis added). The limitation to those 46 crimes remains because "at least three" describes "acts of criminal profiteering." In other words, since a "pattern of criminal profiteering activity" is limited to 46 specific predicate "acts of criminal profiteering," it necessarily follows that the "pattern" is limited to the same 46 specified predicate acts of criminal profiteering.
¶ 17 Even if the phrase "three or more acts of criminal profiteering" were ambiguous and could be interpreted to include nonprofiteering crimes, that ambiguity cannot be resolved by interpreting the statute to include all crimes under the sun-not just the listed 46-in the "pattern." The reason lies in the next controlling rule of statutory interpretation applicable here: any such ambiguity would have to be resolved under the rule of lenity. In re Pers. Restraint of Hopkins, 137 Wash.2d 897, 901, 976 P.2d 616 (1999). And the rule of lenity compels the interpretation that is less punitive, not more punitive.
II. The federal RICO statute, on which Washington's CPA was based, compels the same conclusion
¶ 18 There are other sources of law that compel the same conclusion. We have previously stated that it is helpful to look to the federal racketeering RICO statute on which our state's "Tittle RICO" CPA was based *846when construing the CPA. Winchester v. Stein, 135 Wash.2d 835, 848, 959 P.2d 1077 (1998) (quoting Rice v. Janovich, 109 Wash.2d 48, 55, 742 P.2d 1230 (1987) ).
¶ 19 The CPA's "pattern of criminal profiteering activity" parallels the federal RICO statute's "pattern of racketeering activity."4 Compare RCW 9A.82.010(12), with 18 U.S.C. § 1961(5). RICO defines "pattern of racketeering activity" as "requir[ing] at least two acts of racketeering activity, one of which occurred after the effective date of this chapter and the last of which occurred within ten years (excluding any period of imprisonment) after the commission of a prior act of racketeering activity." 18 U.S.C. § 1961(5) (emphasis added).
¶ 20 Under RICO, these "at least two acts of racketeering activity" have to be on the statutory list of predicate racketeering acts to be included in the "pattern." Specifically, they have to be one of the crimes listed in§ 1961(1)'s exclusive list of predicate acts. In other words, RICO's modifying phrase "at least two" describes the number of predicate acts "of racketeering activity" required, not the number of predicate acts of racketeering activity plus other crimes that Congress neglected to mention. See generally United States v. Turkette , 452 U.S. 576, 583, 101 S.Ct. 2524, 69 L.Ed.2d 246 (1981) (referring to the statutory definition of "racketeering activity" for the "series of criminal acts" on which the pattern must be based); H.J. Inc. v. Nw. Bell Tel. Co., 492 U.S. 229, 239, 109 S.Ct. 2893, 106 L.Ed.2d 195 (1989) (RICO "pattern" must be based on RICO "predicates").
¶ 21 The United States Supreme Court has interpreted a "pattern of racketeering activity" to mean only offenses enumerated in 18 U.S.C. § 1961(1). See Scheidler v. Nat'l Org. for Women, Inc., 547 U.S. 9, 14, 126 S.Ct. 1264, 164 L.Ed.2d 10 (2006) (defining a "pattern of racketeering activity" as a "pattern that RICO defines in terms of certain predicate acts"); Nat'l Org. for Women, Inc. v. Scheidler, 510 U.S. 249, 256-57, 114 S.Ct. 798, 127 L.Ed.2d 99 (1994) (defining "pattern of racketeering activity" through § 1961(l)'s list of predicate offenses); H.J. Inc., 492 U.S. at 239, 109 S.Ct. 2893 (stating that " '[t]he term "pattern" itself requires the showing of a relationship' between the predicates " (emphasis added) (alteration in original) (quoting 116 CONG. REC. , at 18,940 (1970) (Statement of Sen. McClellan) ) ).
¶ 22 This does not matter that much under RICO. As long as the government can charge two listed predicate acts that are sufficiently related to be considered a "pattern," the government can join other non-RICO crimes in the same indictment- there is no federal RICO "joinder bar."
¶ 23 But it matters a great deal in Washington because our legislature, cognizant of the prosecutorial power the CPA carried, did adopt a CPA "joinder bar." And relying on the United States Supreme Court's interpretation of the similar RICO statutes described above, the conclusion is inescapable that predicate CPA criminal profiteering acts, like predicate RICO racketeering acts, are limited to the predicate crimes that the legislature expressly listed. That is why we said in Trujillo v. Northwest Trustee Services, Inc. that " '[c]riminal profiteering' is defined as commission of specific enumerated felonies for financial gain." 183 Wash.2d 820, 837, 355 P.3d 1100 (2015) (citing RCW 9A.82.010(4) ).
¶ 24 Thus, unless an offense is an "act of criminal profiteering" that fits within the definition of a "pattern of criminal profiteering," it cannot be joined with a violation of the CPA. That means that in this case, the State should not have joined the CPA charge of leading organized crime with unenumerated, nonpredicate, non-CPA offenses.5
*847III. We cannot tell from this record why counsel did not object; for that reason we cannot decide whether trial counsel's performance was deficient
¶ 25 But trial counsel did not object. To prove ineffective assistance of counsel, Linville must show that defense counsel's representation was deficient and that defense counsel's deficient performance caused prejudice. State v. Thomas, 109 Wash.2d 222, 225-26, 743 P.2d 816 (1987) (applying the two-pronged test in Strickland, 466 U.S. at 687, 104 S.Ct. 2052 ).
¶ 26 Linville argues that his counsel was deficient for failing to object to joinder of criminal profiteering crimes with non-CPA, non-criminal-profiteering crimes, based on RCW 9A.82.085. Suppl. Br. of Resp't at 6. The record clearly supports Linville's argument that trial counsel did not object to joinder.
¶ 27 But it does not support his argument that this silence necessarily constituted deficient performance. In fact, at oral argument, the State theorized that joinder may have benefited the defendant more than having multiple separate trials and risking multiple separate convictions and sentencings.6 From this record, it is impossible to tell whether that hypothesis-or any others-is correct.
¶ 28 But that is the record we are limited to on this appeal. No other evidence on counsel's strategic or tactical decisions was presented in the courts below. And when "the claim is brought on direct appeal, the reviewing court will not consider matters outside the trial record." State v. McFarland, 127 Wash.2d 322, 335, 899 P.2d 1251 (1995) (citing State v. Crane, 116 Wash.2d 315, 335, 804 P.2d 10 (1991) ; State v. Blight, 89 Wash.2d 38, 45-46, 569 P.2d 1129 (1977) ).
¶ 29 As this court has previously noted, "If a defendant wishes to raise issues on appeal that require evidence or facts not in the existing trial record, the appropriate means of doing so is through a personal restraint petition, which may be filed [and heard] concurrently with the direct appeal." McFarland , 127 Wash.2d at 335, 899 P.2d 1251 (citing WASH. STATE BAR ASS'N, WASHINGTON APPELLATE PRACTICE DESKBOOK § 32.2(3)(c), at 32-6 (2d ed. 1993) (citing State v. Byrd , 30 Wash.App. 794, 800, 638 P.2d 601 (1981) ) ).
CONCLUSION
¶ 30 "Criminal profiteering" crimes include only the predicate offenses specifically listed in RCW 9A.82.010(4). Other unlisted, nonpredicate, non-CPA offenses cannot be *848included in the "pattern of criminal profiteering activity" described by RCW 9A.82.060. After all, that statute requires a "pattern of criminal profiteering activity," not a pattern of some criminal profiteering activity plus any other crimes that the State says are similar. Therefore, the State's decision to join Linville's unenumerated crimes with the charge of leading organized crime, RCW 9A.82.060, violated the CPA's "joinder bar," RCW 9A.82.085. Any other interpretation would make that joinder bar completely ineffective.
¶ 31 On this record, however, it is impossible to tell whether Linville's counsel had legitimate reasons for remaining silent in the face of such joinder. It would take a separate collateral challenge with evidence outside the record to figure that out.
¶ 32 We therefore reverse and remand to the Court of Appeals for further proceedings in that court.
WE CONCUR:
Fairhurst, C.J.
Madsen, J.
Owens, J.
Stephens, J.
Wiggins, J.
González, J. (concurring in result only)
¶ 33 Washington's Criminal Profiteering Act (WCPA), ch. 9A.82 RCW, is a powerful tool designed to eliminate organized crime. Because it is such a powerful tool, our legislature has placed limitations on its use. Relevantly, only crimes that fit within a pattern of criminal profiteering may be joined. RCW 9A.82.085. The majority expands this limitation to the point of absurdity and eviscerates this tool's ability to fight organized crime.
¶ 34 Kenneth Linville Jr. led a wave of burglaries throughout Thurston County. The State charged him with leading organized crime, RCW 9A.82.060, and 137 other crimes. Majority at 3 n.2. Some of Linville's crimes were specifically enumerated in the definition of "criminal profiteering," RCW 9A.82.010(4) ; others were not. The WCPA's joinder provision prevents the State from charging Linville with crimes that are not "alleged to be part of the pattern of criminal profiteering activity." RCW 9A.82.085. The State joined all charges related to Linville's organized criminal activities, including those that were not enumerated under the definition of "criminal profiteering" in the WCPA. Linville's counsel did not move for severance based on the WCPA's joinder provision. I agree with the majority that Linville fails to rebut the presumption that counsel performed reasonably, but write separately because the joinder provision does not categorically bar the State from charging crimes that are not enumerated under the definition of "criminal profiteering."
¶ 35 In a prosecution for leading organized crime, the State can charge only crimes "alleged to be part of the pattern of criminal profiteering activity." RCW 9A.82.085. The WCPA defines "pattern of criminal profiteering activity" as "engaging in at least three acts of criminal profiteering." RCW 9A.82.010(12). The phrase "at least," in this definition, modifies "three acts" and sets out a floor for what constitutes a pattern of criminal profiteering activity. See Bakerv.Morris, 84 Wash.2d 804, 812-13, 529 P.2d 1091 (1974) (Stafford, J., dissenting) (" 'At least' is not a restrictive phrase."). "At least" does not limit what other acts the State can charge to demonstrate the pattern; it simply prohibits the State from charging a WCPA violation unless there are a minimum of three of the enumerated criminal profiteering crimes included in RCW 9A.82.010(4).1
*849Those "three acts must have the same or similar intent, results, accomplices, principals, victims, or methods of commission, or be otherwise interrelated by distinguishing characteristics including a nexus to the same enterprise, and must not be isolated events." RCW 9A.82.010(12). Functionally, this acts to limit application of the joinder rule in CrR 4.3, which allows offenses to be joined when they "[a]re of the same or similar character, even if not part of a single scheme or plan," among other things.
¶ 36 The majority fundamentally misunderstands organized crime prosecutions. The required nexus can be proved in some cases by relying on crimes that are not enumerated.2 Clearly, the legislature intended for crimes that are not enumerated as criminal profiteering to be charged alongside enumerated crimes. James M. Evans, "Don't Throw Me Into the Briar Patch": RICO and Rules of Evidence, 73 NOTRE DAME L. REV. 433, 435 (1998) ("[T]here are high evidentiary burdens involved with RICO.... [B]ecause the RICO prosecutor[s] must prove more, [they] can prove more."). Here, the State alleged Linville led a wave of burglaries. Burglary is not enumerated in the definition of criminal profiteering, but the bulk of Linville's burglaries were committed in the same transaction as criminal profiteering crimes, such as first degree theft. As the State explains, "The definition of a pattern of criminal profiteering necessarily includes the means utilized and crimes based on the methods and results of offenses which would otherwise be enumerated are necessarily part of the 'pattern' of criminal profiteering." Pet. for Review at 11. To show that enumerated crimes have a nexus to the same criminal enterprise, the State may need to rely on crimes that are not enumerated. Thus, crimes that are not enumerated as criminal profiteering can be charged alongside enumerated crimes to satisfy the WCPA's nexus requirement.
¶ 37 The State raises a significant question of whether the majority's interpretation is a sustainable interpretation of the statute given that it, in effect, would trigger double jeopardy to block prosecution of crimes that are not enumerated but were nonetheless part of the nexus of the criminal profiteering activity. In my view, this is more evidence that the legislature could not have intended the interpretation of the joinder provision that the majority gives it today.
¶ 38 The majority's categorical rule reveals a lack of confidence in the adjudicative process-trial courts are capable of determining if alleged crimes fit within a pattern. As long as at least three criminal profiteering predicates are included in a pattern of criminal profiteering activity and all of the charged crimes are related to the pattern, the joinder provision is satisfied. I concur in result only.
Johnson, J.
Yu, J.