¶1
Penoyar, J.The State charged David Lobe with violating a no-contact order protecting Tara Pappas, his ex-girlfriend. Before trial, Lobe had conversations with both Pappas and a mutual acquaintance, Ericka Attouf, instructing them to withhold information from the prosecution and/or stay away from court proceedings. Lobe was convicted of (1) violating Pappas’s no-contact order, (2) committing a third violation of a no-contact order, (3) and *899two counts of witness tampering. Lobe appeals, arguing that (1) the evidence was insufficient to support his convictions for witness tampering and (2) the court’s failure to give a unanimity instruction requires reversal. The evidence was sufficient to support Lobe’s convictions, but we reverse on the witness tampering charges due to lack of a specific jury unanimity instruction.
FACTS
¶2 On May 16, 2005, Olympia Police Officer Brian Henry responded to a domestic violence call placed from a Thurston County Courthouse pay phone. When he arrived at the courthouse, he found Pappas crying, with red marks on her face. She informed Officer Henry that she had been visiting with Lobe across the street at his apartment and he had assaulted her. Officer Henry then went to Lobe’s apartment and arrested him for violation of a no-contact order/domestic violence felony. Three days later, Lobe was charged with assault in violation of a no-contact order.
f 3 Pappas and Lobe dated for a short time in 2003, after which time she obtained a no-contact order to protect herself and her son. They restarted their relationship in March 2005. She moved in with Lobe but split her time between Lobe’s apartment and her friend’s (Attouf’s) house “[blecause . . . there was a no-contact order.” Report of Proceedings (RP) at 84-86. After Lobe attacked her, Pappas moved to Lewis County but remained in contact with Attouf.
¶4 Attouf later testified that Sara Gregoire, Lobe’s new girl friend, called her around July 18, 2005. During the call, Attouf informed Gregoire that she had a voice mail from an attorney trying to get Pappas’s new contact information. Lobe then got on the phone and warned Attouf that if she gave Pappas’s contact information to “them” and Pappas did not appear in court, “that she [Pappas] would be in trouble and that he [Lobe] didn’t want to see her get in trouble.” RP at 140. “[H]e basically was saying make sure that she doesn’t go to court because it’s just — it’s going to go *900away . . . and just basically to not give the contact information.” RP at 140-41.
¶5 Pappas also testified that on July 21, 2005, Gregoire called her and then put Lobe on the phone. According to Pappas, Lobe then told her to tell Attouf to conceal Pappas’s contact information from the prosecuting attorney. Lobe also asked Pappas not to show up to court, and “[h]e kept repeating it to [her].” RP at 106. After speaking with Lobe, Pappas called Attouf and informed her of what Lobe had said.
¶6 On October 26, 2005, Lobe was charged by third amended information with violation of a no-contact order— assault (count I), third or subsequent violation of a no-contact order (count II), and two counts of witness tampering (count III — tampering with Pappas; count IV — tampering with Attouf). A jury trial followed.
¶7 The jury was given the following to-convict instruction:
Instruction No. 13
To convict the defendant of the crime of tampering with a witness, as charged in count III, each of the following elements of the crime must be proved beyond a reasonable doubt:
(1) That on or about the 21st day of July, 2005, the defendant attempted to induce a person, Tara Pappas, to testify falsely or, without right or privilege to do so, withhold testimony or absent himself or herself from any official proceeding or withhold from a law enforcement agency information which he or she had relevant to a criminal investigation; and
(2) That the other person was a witness or a person the defendant had reason to believe was about to be called as a witness in any official proceedings or a person whom the defendant had reason to believe might have information relevant to a criminal investigation; and
(3) That the acts occurred in the State of Washington.
Clerk’s Papers at 86.
¶8 For count IV (tampering with Attouf), the jury was given a nearly identical to-convict instruction, changing *901only the name of the witness and charge number. The court did not give a unanimity instruction.
¶9 The jury convicted Lobe on all counts but entered a special verdict finding that the violation of the no-contact order was not an assault. The court sentenced Lobe within the standard range for each offense, with all of the sentences running concurrently. This appeal followed.
ANALYSIS
I. Sufficient Evidence
¶10 Lobe first argues that the evidence presented was insufficient to prove beyond a reasonable doubt that he committed witness tampering with respect to Attouf (as charged in count IV). Specifically, he claims that the State did not prove either (1) that Attouf was to be called as a witness, or that Lobe had reason to believe that she would be called as a witness,1 or (2) that Lobe directed Attouf to testify falsely, withhold information, or absent herself from an official proceeding.
¶11 The State concedes that no evidence showed Lobe attempting to induce Attouf to testify falsely or absent herself from the proceeding, but it argues that the evidence was sufficient to convince a reasonable trier of fact that Lobe had reason to believe that Attouf might have information relevant to the investigation and that he attempted to induce her to withhold that information.
¶12 The test for determining the sufficiency of the evidence is whether, after viewing the evidence in the light most favorable to the State, any rational trier of fact could have found guilt beyond a reasonable doubt. State v. Salinas, 119 Wn.2d 192, 201, 829 P.2d 1068 (1992). When the sufficiency of the evidence is challenged in a criminal case, all reasonable inferences from the evidence must be *902drawn in the State’s favor and interpreted most strongly against the defendant. Salinas, 119 Wn.2d at 201.
f 13 Attouf testified that as she told Gregoire that the prosecution had left her a message (asking for Pappas’s updated contact information), she could hear Gregoire relaying that information to Lobe. After Lobe heard this information, he personally spoke to Attouf and ordered her not to tell the prosecution how to contact Pappas.
¶14 Viewing this evidence in the light most favorable to the prosecution, it is clear that a rational trier of fact could have found Lobe guilty of witness tampering beyond a reasonable doubt. He had reason to believe that Attouf had information relevant to the prosecution, as he had just heard that the prosecution contacted her to attempt to locate the main witness in the case (Pappas). He then attempted to persuade her to withhold that information. The evidence was sufficient to support a conviction under the third alternative for witness tampering: an attempt to induce a person to withhold information from a law enforcement agency. There was clearly sufficient evidence to convict Lobe on witness tampering.
II. Unanimity Instruction
¶15 Next, Lobe argues that his witness tampering convictions (counts III and IV) should be overturned because the trial court failed to give a unanimity instruction. The State concedes that it failed to present evidence supporting each alternative means of witness tampering, but it contends that the lack of a unanimity instruction was harmless because the prosecutor presented substantial evidence of only two means for count III (asking Pappas to absent herself from the proceeding and withhold information from the prosecutor) and one means for count TV (asking Attouf to withhold information).
¶[16 There are three alternative means of committing witness tampering — attempting to induce a person to (1) testify falsely or withhold testimony, (2) absent him- or herself from an official proceeding, or (3) withhold informa*903tion from a law enforcement agency. RCW 9A.72.120(l)(a)-(c). For both count III and count IV, all three alternatives were charged and included in the jury instructions. On count III, we agree with the State that substantial evidence and argument was provided on two of the three alternative means. However, on count IV, substantial evidence was presented only on one means (withholding information) but the prosecutor referred to an alternative means (absenting herself from the proceeding).
¶17 Criminal defendants in Washington have a right to a unanimous jury verdict. Wash. Const, art. I, § 21. This right includes the right to an expressly unanimous verdict. Wash. Const, art. I, § 21 states: “The right of trial by jury shall remain inviolate, but the legislature may provide for a jury of any number less than twelve in courts not of record, and for a verdict by nine or more jurors in civil cases. . . .” Allowing juries of less than 12 in courts not of record creates a right to 12-member juries in courts of record. City of Seattle v. Filson, 98 Wn.2d 66, 70, 653 P.2d 608 (1982), overruled on other grounds by In re Eng, 113 Wn.2d 178, 776 P.2d 1336 (1989). Additionally, by allowing juries of nine or more only in civil cases, the final clause implicitly recognizes a unanimous verdict requirement in criminal cases. State v. Stephens, 93 Wn.2d 186, 190, 607 P.2d 304 (1980); see also State v. Kitchen, 110 Wn.2d 403, 409, 756 P.2d 105 (1988); State v. Workman, 66 Wash. 292, 294-95, 119 P. 751 (1911). In certain situations, the right to a unanimous jury trial also includes the right to express jury unanimity on the means by which the defendant is found to have committed the crime. State v. Green, 94 Wn.2d 216, 230-35, 616 P.2d 628 (1980); accord State v. Whitney, 108 Wn.2d 506, 511, 739 P.2d 1150 (1987); State v. Franco, 96 Wn.2d 816, 823, 639 P.2d 1320 (1982); State v. Simon, 64 Wn. App. 948, 961, 831 P.2d 139 (1991).
¶18 Washington jurisprudence has produced two distinct lines of analysis regarding the jury unanimity requirement. In one group of cases, unanimity is presumed so long as it is clear that the verdict was based on only one of the *904alternative means (and substantial evidence supported that means). See State v. Rivas, 97 Wn. App. 349, 351-52, 984 P.2d 432 (1999) (upholding verdict where evidence was presented on only one of three alternative means), overruled on other grounds by State v. Smith, 159 Wn.2d 778, 787, 154 P.3d 873 (2007); State v. Bland, 71 Wn. App. 345, 354, 860 P.2d 1046 (1993), overruled on other grounds by Smith, 159 Wn.2d at 787.
¶19 In a second group of cases, unanimity is required as to guilt, but not as to the means by which the crime was committed, so long as substantial evidence supports each alternative means charged. Kitchen, 110 Wn.2d at 410-11. The Kitchen court stated that when reviewing an alternative means case, the court must determine whether a rational trier of fact could have found each means of committing the crime proved beyond a reasonable doubt. Kitchen, 110 Wn.2d at 410. However, in previous cases, the court generally required unanimity as to both the crime committed and the means of commission. State v. Ortega-Martinez, 124 Wn.2d 702, 707, 881 P.2d 231 (1994); see Whitney, 108 Wn.2d 506; Green, 94 Wn.2d 216. In both Ortega-Martinez and Whitney, sufficient evidence existed of multiple means, and the trial court did not specifically instruct the jury that it was required to be unanimous as to means. Nevertheless, the reviewing court did not reverse for a lack of unanimity — not because unanimity as to means was not required, but because unanimity as to the means could be inferred from the evidence presented and the general unanimity instruction.
¶20 Thus in Ortega-Martinez, we find the following language:
If the evidence is sufficient to support each of the alternative means submitted to the jury, a particularized expression of unanimity as to the means by which the defendant committed the crime is unnecessary to affirm a conviction because we infer that the jury rested its decision on a unanimous finding as to the means.
*905Ortega-Martinez, 124 Wn.2d at 707-08 (second emphasis added) (citing Whitney, 108 Wn.2d at 512; Franco, 96 Wn.2d at 823; State v. Arndt, 87 Wn.2d 374, 377, 553 P.2d 1328 (1976)).
¶21 Also, in Whitney, the court quoted with approval the Ninth Circuit decision in Pay seno, which concluded that “ ‘[n]ormally, a general instruction on the requirement of unanimity suffices to instruct the jury that they must be unanimous on whatever specifications form the basis of the guilty verdict.’ ” Whitney, 108 Wn.2d at 512 (quoting United States v. Payseno, 782 F.2d 832, 835 (9th Cir. 1986)); see also United States v. Schiff, 801 F.2d 108, 114 (2d Cir. 1986); United States v. Frazin, 780 F.2d 1461, 1468 (9th Cir. 1986); United States v. Ferris, 719 F.2d 1405, 1407 (9th Cir. 1983); United States v. Murray, 618 F.2d 892, 898 (2d Cir. 1980).
¶22 Thus, the law has moved from an inference of unanimity as to means only where each means is supported by substantial evidence to a bright line rule that “[ujnanimity is not required ... as to the means by which the crime was committed so long as substantial evidence supports each alternative means.” Kitchen, 110 Wn.2d at 410. In sum, where there are three alternative means of committing a crime and the jury is instructed on all three, either (1) substantial evidence must support each alternative means on which evidence or argument was presented or (2) evidence and argument must have been presented on only one means.
¶23 Here, both the charging documents and the jury instructions included all three alternative means but the State failed to present evidence that (1) Lobe attempted to persuade Pappas to testify falsely (relating to count III) or (2) Lobe attempted to convince Attouf to absent herself or testify falsely (relating to count IV). The State concedes that it failed to present evidence supporting each alternative means of witness tampering, but it contends that this error was harmless because the prosecutor presented only two means for count III (tampering with Pappas) and one means for count IV (tampering with Attouf).
*906¶24 When arguing count III (witness tampering against Pappas), the State presented evidence that Lobe both attempted to persuade Pappas to absent herself from the proceedings and attempted to persuade her to have her acquaintance withhold her contact information from investigators. Sufficient evidence supported both of these means, but no evidence or argument was presented as to the third means charged and described in the jury instructions (asking Pappas to testify falsely). Thus, in order to affirm the conviction, we would be required to both (1) find unanimity based on the substantial evidence supporting each of two alternative means and (2) presume that the jury relied only on the alternatives for which evidence was presented. In other words, the State in this one count is invoking two different presumptions to establish unanimity. In the context of a case where the jury was also improperly instructed on another similar count and where simple changes in the jury instructions could have avoided the error, we find there is too unstable a foundation to permit us to affirm the conviction.
¶25 Similarly, the probability of jury confusion and lack of unanimity is too great to permit us to affirm Lobe’s conviction on count IV (witness tampering against Attouf). The evidence was sufficient to support only a conclusion that Lobe attempted to persuade Attouf to withhold information (Pappas’s contact information). However, the prosecutor also stated that Lobe “repeat [ed] over and over and over again to Ericka [Attouf], [y]ou don’t show up in court. You don’t show up in court.” RP at 193-94. To be fair, this appeared to be unintentional — a few sentences later, he refers to “Tara” (Pappas) as the person Lobe ordered to stay away from court. RP at 194. He did not, at any other time, make a statement indicating that Lobe had ordered Attouf to absent herself from the proceedings but instead repeatedly argued that Lobe ordered Attouf to withhold information from the prosecution. Nevertheless, this brief argument advancing a second alternative means may have been what some jurors relied on when convicting Lobe on count *907IV. Without a limiting instruction, we cannot be sure of jury unanimity and we must reverse.
III. Statement of Additional Grounds Issues
¶26 Lobe also raises additional arguments in his statement of additional grounds, but none of these arguments are persuasive. Because we reverse based on the lack of unanimity, above, we decline to address these additional arguments.
¶27 We reverse.
Armstrong, J., concurs.
Lobe’s phone conversation with Attouf took place on July 18; the record does not contain a witness list from the State until July 22, 2005. The witness list includes both Attouf and Pappas.