State v. Rex A. Bigger

CourtCourt of Appeals of Wisconsin
DecidedNovember 25, 2025
Docket2023AP001877-CR
StatusUnpublished

This text of State v. Rex A. Bigger (State v. Rex A. Bigger) is published on Counsel Stack Legal Research, covering Court of Appeals of Wisconsin primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
State v. Rex A. Bigger, (Wis. Ct. App. 2025).

Opinion

COURT OF APPEALS DECISION NOTICE DATED AND FILED This opinion is subject to further editing. If published, the official version will appear in the bound volume of the Official Reports. November 25, 2025 A party may file with the Supreme Court a Samuel A. Christensen petition to review an adverse decision by the Clerk of Court of Appeals Court of Appeals. See WIS. STAT. § 808.10 and RULE 809.62.

Appeal No. 2023AP1877-CR Cir. Ct. No. 2020CF62

STATE OF WISCONSIN IN COURT OF APPEALS DISTRICT III

STATE OF WISCONSIN,

PLAINTIFF-RESPONDENT,

V.

REX A. BIGGER,

DEFENDANT-APPELLANT.

APPEAL from a judgment and an order of the circuit court for Buffalo County: RIAN W. RADTKE, Judge. Affirmed.

Before Stark, P.J., Hruz, and Gill, JJ.

Per curiam opinions may not be cited in any court of this state as precedent

or authority, except for the limited purposes specified in WIS. STAT. RULE 809.23(3).

¶1 PER CURIAM. Rex A. Bigger appeals a judgment convicting him, following a jury trial, of repeated sexual assault of the same child. He also appeals No. 2023AP1877-CR

an order denying his motion for postconviction relief. Bigger argues that his trial counsel was constitutionally ineffective on the following three grounds: (1) counsel’s cross-examination of a witness elicited a response that constituted inadmissible other-acts evidence; (2) counsel failed to object to the investigating detective’s repeated responses that he believed the victim, which allegedly violated State v. Haseltine, 120 Wis. 2d 92, 352 N.W.2d 673 (Ct. App. 1984); and (3) counsel failed to consult with or hire an expert to support Bigger’s defense based on his having made a false confession. We reject Bigger’s arguments and affirm.

BACKGROUND

¶2 In May 2020, the State charged Bigger with repeatedly sexually assaulting Brittany1 between January 2011 and October 2013. According to the criminal complaint, Brittany met with Detective Michael Osmond and described multiple instances of Bigger sexually assaulting her at a residence on East Hudson Street in Mondovi, Wisconsin. Osmond also met with Bigger, and that interview was audio-visually recorded. After about one and one-half hours, Bigger admitted that he and Brittany “had sex” and that he was “positive it was no more than five times.” The matter proceeded to a jury trial.

¶3 At trial, Brittany testified that her mother and Bigger divorced when she was very young and that Bigger later married JoAnn Werlein. Brittany recalled that she was about ten or eleven years old when Bigger moved into the Hudson Street residence in 2011 and that she and her sister visited Bigger at that

1 Pursuant to the policy underlying WIS. STAT. RULE 809.86(4) (2023-24), we use a pseudonym when referring to the victim in this case.

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residence on the weekends. Brittany testified that she, her sister, and Werlein slept in the living room when they visited Bigger, while Bigger slept in his bedroom upstairs.

¶4 Brittany further testified that Bigger began to sexually assault her when he lived at the Hudson Street residence. She stated that after she fell asleep in the living room, Bigger would carry her up to his bedroom. Brittany further testified that Bigger would make her wear a nightgown and would tell her to not wear her underwear. Brittany continued that she would get on the bed, and Bigger would sexually assault her. Brittany then described in detail how Bigger would sexually assault her. She also described instances of Bigger sexually assaulting her in the restroom and one instance that occurred in the living room.

¶5 Brittany stated that the sexual assaults stopped in 2013 when Bigger and Werlein separated and both moved out of the residence. Brittany testified that after the assaults stopped, she told her sister about them, and her sister then told their mother. Brittany recalled that after telling her sister about the assaults, she went to a center where she did a forensic interview, but nothing else happened at that time. On cross-examination, Brittany agreed that there were things she did not mention in the 2013 forensic interview that she mentioned in her trial testimony.

¶6 Werlein testified that she and Bigger were married from 2003 to 2016 but separated in 2012. Werlein also testified that she and Bigger moved into the Hudson Street residence in 2011 and that Brittany and her sister would visit on the weekends. She further testified that when she lived at the residence, Bigger slept upstairs while she slept on the couch. When Brittany and her sister visited, Werlein stated that they would sleep on the couch with her. Werlein also stated

3 No. 2023AP1877-CR

that when they fell asleep, Bigger “would carry only [Brittany] upstairs to the bed.”

¶7 Werlein described one specific night when she went upstairs to use the restroom and saw Brittany lying on Bigger’s bed with her nightgown pulled up past her chest. Werlein recalled that Brittany did not have her “undies on, she had no bottoms on, and I went in and I thought it was strange so I pulled down her nightgown and then covered her up.” On cross-examination, Werlein testified that the circumstances of her relationship with Bigger in 2011 and 2012 “were not good” and that their relationship “was coming to an end.”

¶8 Detective Osmond testified about his meetings with Brittany and Bigger. Osmond testified that during his interview with Bigger, he asked Bigger whether he had sex with Brittany, and Bigger “denied it, approximately seven times, there were 18 times that he stated he didn’t remember, and then there was a number of times that he said that he had sex with [Brittany].” Elaborating on the number of times Bigger admitted he had sex with Brittany, Osmond testified that Bigger first “stated that he woke up and [Brittany] was on top of him having sex with him. He stated that that occurred two to three more times; again I asked for more of a definitive number, he then said well, it didn’t happen more than five times.”

¶9 Osmond also testified that he asked Bigger whether he wanted to write an apology letter and that Bigger wrote one. The apology letter, addressed to Brittany, stated the following:

I would like you to know how sorry I am for what I done [sic] to you. During some of your childhood. I hope your [sic] will be able to forgive me. I will seek more counciling [sic] if you want that. I will do what I have to to

4 No. 2023AP1877-CR

make this better, and to try to right the wrongs I have done. I am truly very sorry with all my heart.

The jury then watched portions of Bigger’s recorded interview.

¶10 On cross-examination, Osmond testified that Bigger denied sexually assaulting Brittany several times in a portion of the interview that the jury did not watch. Defense counsel also asked several questions about statements Osmond made in response to Bigger’s denials, indicating Osmond’s belief that Bigger had sexually assaulted Brittany.

¶11 The jury found Bigger guilty of repeated sexual assault of a child. The circuit court subsequently imposed a 55-year prison sentence, consisting of 35 years of initial confinement followed by 20 years of extended supervision.

¶12 Bigger moved for postconviction relief, seeking a new trial on the ground of ineffective assistance of trial counsel. Bigger argued that his counsel was ineffective by cross-examining Werlein in a way that elicited a response containing inadmissible other-acts evidence, by failing to object to Osmond’s repeated responses that vouched for Brittany’s credibility and that expressed his opinion that Bigger was guilty, and by failing to consult or hire an expert witness on false confessions to support Bigger’s defense.

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Bluebook (online)
State v. Rex A. Bigger, Counsel Stack Legal Research, https://law.counselstack.com/opinion/state-v-rex-a-bigger-wisctapp-2025.