State v. Marx

Court of Appeals of Utah·Decided July 23, 2026·No. Case No. 20230044-CA·Published

Opinion

2026 UT App 109

THE UTAH COURT OF APPEALS

STATE OF UTAH, Appellee, v. TREVOR ALEXANDER MARX, Appellant.

Opinion No. 20230044-CA Filed July 23, 2026

Fifth District Court, St. George Department The Honorable Jeffrey C. Wilcox No. 191502062

Staci Visser and Ann Marie Taliaferro, Attorneys for Appellant Derek E. Brown and Karen A. Klucznik, Attorneys for Appellee

JUDGE AMY J. OLIVER authored this Opinion, in which JUDGES GREGORY K. ORME and JOHN D. LUTHY concurred.

OLIVER, Judge:

¶1 A jury convicted Trevor Alexander Marx of one count of sodomy upon a child and one count of tampering with a witness. On appeal, he alleges the State failed to disclose favorable and material evidence and his attorney (Counsel) rendered ineffective assistance in multiple ways. He also requests we remand his case to the district court to develop the record regarding one of his claims. We are unpersuaded by his arguments and thus affirm his convictions and deny his request. State v. Marx

BACKGROUND 1

The Abuse

¶2 Marx married his first wife (Mother) in October 2005, and their daughter Taylor 2 was born in April 2006. At the time, the family lived in St. George, Utah, and Marx cared for Taylor during the day while Mother worked. At the first house Taylor recalled living in with her parents, Marx “put . . . chocolate sauce on his penis, and he told [her] to lick it off.” Taylor did so because Marx “told [her] to” and because she “trusted” her father. Marx and Mother separated when Taylor was approximately eighteen months old, and the two began living separately, with Taylor spending half of her time with each parent.

¶3 Marx and Mother eventually divorced when Taylor was “around the age [of] 4 or 5.” Marx moved to Layton, Utah, shortly thereafter, in June 2010, seeing Taylor only on weekends and during the summer. After the move, there were multiple instances where Marx would “get on top of [Taylor]” and make her “kiss him in intimate ways.” Specifically, he would “[F]rench kiss [Taylor], and he would expect [her] to do it back.” The abuse stopped when Taylor was about eight years old.

The Disclosure and Investigation

¶4 In 2019, thirteen-year-old Taylor disclosed to Mother that Marx had done “some really, really bad things” to her. At this point, the abuse was “affecting [her] mentally and physically,” and she had “kind of developed [an] eating disorder because of it.” The next morning, Mother took Taylor to the police station to report the abuse. Mother discussed the disclosure with a detective

1. “On appeal, we review the record facts in a light most favorable to the jury’s verdict and recite the facts accordingly.” State v. Maese, 2010 UT App 106, n.2, 236 P.3d 155.

2. A pseudonym.

20230044-CA 2 2026 UT App 109 State v. Marx

(Detective) and told him that she had previously asked Taylor “several times” whether Marx had abused her. She explained that she had spoken to Marx’s second ex-wife (Ex-wife) the previous day and that “[e]very time” she spoke to Ex-wife on the phone, Ex-wife asked if Mother was sure “that [Marx] ha[d]n’t done anything with [Taylor].” Mother told Detective that based on her “weird gut feeling” after that particular phone call, she again asked Taylor if Marx had “done anything inappropriate with” her, and Taylor “finally” disclosed the abuse. Detective then set up an interview for Taylor at the Children’s Justice Center (CJC).

¶5 As part of the investigation, police had Taylor make a recorded pretext call to Marx (the Pretext Call). When Marx answered, he sounded relaxed and happy to talk to Taylor. Then Taylor said Mother had put her in counseling and she was being asked whether Marx had ever done anything inappropriate with her. Taylor expressed that she did not know what she should do. Marx’s tone shifted, and he replied, “You should just answer how you feel, kiddo.”

¶6 Taylor pressed further, asking, “[L]ike what do I do?” Marx initially responded, “I cannot answer that question for you what you do, okay?” He then asked, “But is anybody else there?” After Taylor confirmed she was the only person on the call, Marx said, “Well, I mean I would prefer you not say anything about anything . . . . Obviously. But that’s up to you, kiddo.”

¶7 Marx shifted the conversation, and the two briefly discussed other topics. Marx then asked Taylor if she was okay, and she replied, “I was just nervous, and I didn’t know what to tell them.” Again Marx responded, “Well, like I said, you tell them what you want, but I’d prefer you not.” He continued to explain, saying, “I could get into a lot of trouble, you know?”

¶8 Marx then asked Taylor what she had told the counselor so far. She said, “I haven’t really told them anything,” and she reiterated she had just begun meeting with the counselor when these questions had come up. Marx then replied, “Okay. Well, okay. Like I said, it’s up to you as to what you—what you answer

20230044-CA 3 2026 UT App 109 State v. Marx

on that, but I would prefer not.” At this point, his tone became more serious and he said, “Listen, I can get into a lot of trouble.” Marx and Taylor then discussed one of Taylor’s school classes before concluding the call.

¶9 Detective later called Marx to inform him of Taylor’s allegations. 3 Marx’s initial response was to ask when Taylor alleged the abuse occurred. When Detective asked him why he was asking about the time frame of the abuse, Marx “indicated that he very rarely saw” Taylor. Eventually, Marx denied the allegations and claimed he had never been alone with Taylor. Detective also asked Marx about his repeatedly telling Taylor on the Pretext Call that he would prefer she not say anything because he could get in trouble. Marx explained he made these comments because he would get in trouble if Taylor claimed he had touched her. Marx was not “angry” during the call with Detective, but he was “matter of fact” and “put off.”

¶10 Marx was later charged with one count of sodomy upon a child and one count of tampering with a witness.

The Trial

¶11 At trial, Taylor testified about the abuse described above. She also recalled additional details related to the abuse. Specifically, Taylor testified about the house in St. George where the abuse began, including the color and layout of the house, the location of the bed in her bedroom, and a mural painted on her bedroom wall. She also recalled that during the abuse, Marx was on her bed and was wearing a shirt “but no pants.” Similarly, she recounted details of the house in Layton and the room where the other abuse occurred. She also testified that she had not disclosed the abuse earlier because Marx “used to tell [her] . . . that if [she]

3. Detective’s phone call with Marx was not played during trial or made part of the record on appeal. Detective testified to the contents of the phone call during his trial testimony.

20230044-CA 4 2026 UT App 109 State v. Marx

said anything, he would go to jail.” During her testimony, the State played the audio of the Pretext Call.

¶12 The State also called Mother to testify. She discussed the “contentious and rocky” nature of her relationship with Marx, admitting that the two “were fighting all the time” and “[t]here was a lot of contention between the two of [them] leading up to and during the divorce.” She testified this dynamic remained even after the divorce, with “heated” communications continuing between the two, including about child support and custody. She also testified she had told Marx that her new husband wanted to adopt Taylor.

¶13 Detective testified regarding both the Pretext Call and his telephone conversation with Marx.

¶14 At the close of the State’s case, Marx moved for a “judgment of acquittal.” The court denied the motion.

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