State v. Mario T. Tucker

CourtCourt of Appeals of Wisconsin
DecidedSeptember 18, 2025
Docket2024AP000887-CR
StatusUnpublished

This text of State v. Mario T. Tucker (State v. Mario T. Tucker) 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. Mario T. Tucker, (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. September 18, 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. 2024AP887-CR Cir. Ct. No. 2020CF1141

STATE OF WISCONSIN IN COURT OF APPEALS DISTRICT IV

STATE OF WISCONSIN,

PLAINTIFF-RESPONDENT,

V.

MARIO T. TUCKER,

DEFENDANT-APPELLANT.

APPEAL from a judgment and an order of the circuit court for Rock County: KARL HANSON, Judge. Affirmed.

Before Graham, P.J., Blanchard, and Nashold, 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. Mario Tucker appeals a judgment and an order of the circuit court denying his postconviction motion seeking a modification of his No. 2024AP887-CR

sentence. Tucker argues that evidence given by an expert retained by the defense after sentencing, concluding that Tucker is “borderline cognitively impaired” and has “traits of paranoid personality disorder,” constitutes a new factor that warrants sentence modification. The circuit court denied Tucker’s sentence motion based on the court’s conclusion that the expert evidence did not constitute a new factor, and, alternatively, even if the evidence constituted a new factor, it did not warrant modifying the sentence. Tucker requests that this court reverse the order denying his motion and remand for the circuit court to exercise its discretion to modify the sentence based on the purported new factor. We assume without deciding that the expert evidence identified by Tucker constitutes a new factor. With that assumption, we conclude that Tucker fails to show that the circuit court erroneously exercised its discretion in declining to modify Tucker’s sentence.

BACKGROUND

¶2 In December 2020, Tucker was charged with a single count of first- degree intentional homicide contrary to WIS. STAT. § 940.01(1)(a), based on a fatal shooting.1 At trial, the defense argued in pertinent part that Tucker acted in complete (perfect) self-defense and should be acquitted on that basis.2 The jury 1 All references to the Wisconsin Statutes are to the 2023-24 version. 2 Our supreme court has explained:

The [Wisconsin] statutes define two types of self- defense: perfect and imperfect. Imperfect self-defense is an affirmative defense to first-degree intentional homicide. WIS. STAT. § 940.01(2)(b)[]. It is aptly named because, when successful, it reduces a charge of first-degree intentional homicide to second-degree intentional homicide and therefore does not function as a complete (perfect) defense to a homicide charge. Id.

State v. Johnson, 2021 WI 61, ¶19, 397 Wis. 2d 633, 961 N.W.2d 18 (footnote omitted). (continued)

2 No. 2024AP887-CR

convicted Tucker of second-degree intentional homicide. See WIS. STAT. § 940.01(2).

¶3 The circuit court ordered the state department of corrections to prepare a presentence investigation report. The report recommended a sentence of 16 years of initial confinement followed by 7 years of extended supervision. The State recommended that the court impose 30 years of initial confinement and 20 years of extended supervision, while the defense argued the court should either follow the PSI recommendation or impose a lesser sentence. The court imposed 30 years of initial confinement and 20 years of extended supervision.

¶4 Represented by new counsel after sentencing, Tucker retained a psychologist, Dr. Brian Stress, to conduct a neuropsychological examination of Tucker and to produce a report that was submitted to the circuit court as part of a postconviction motion. The report included the following assertions. Tests conducted by Dr. Stress indicated that Tucker had an IQ of 82, which meant that his cognitive ability fell within the “borderline impaired” range. Testing also showed that aspects of Tucker’s executive functioning fell within the borderline impaired range. Tucker exhibited characteristics of “paranoid personality disorder,” along with “additional personality disorder symptoms.” These traits made it “more likely than not” that Tucker was “at significant risk of misinterpreting others’ behaviors as a threat towards him, which could result in unjustified defensive aggressive behaviors.”

On a related note, in closing argument, defense counsel here also appeared to invite the jury to consider a verdict of first-degree or second-degree reckless homicide, contrary to WIS. STAT. §§ 940.02(1) and 940.06, respectively, in the event that the jury did not accept the complete self-defense theory.

3 No. 2024AP887-CR

¶5 In the postconviction motion, Tucker requested that the circuit court modify his sentence, arguing that Dr. Stress’ report constituted a “new factor” that warranted modification. See State v. Schueller, 2024 WI App 40, ¶26, 413 Wis. 2d 59, 10 N.W.3d 423 (circuit courts have inherent authority to modify criminal sentences when a defendant has demonstrated the existence of a “new factor”).

¶6 The circuit court held an evidentiary hearing at which Dr. Stress and Tucker’s trial counsel testified. Dr. Stress testified that, based on the results of his evaluation, Tucker’s executive function abilities were “significantly lower” than those of an average person. One consequence of this was that Tucker’s ability to process information was “limited compared to somebody [in the] low average to average range” and that Tucker might make decisions that do not “take into [account] numerous nuances that may be generally utilized [by] somebody who has a higher cognitive capacity.” Dr. Stress testified, consistent with his report, that Tucker’s cognitive ability and personality traits “more likely than not contribute[]” to Tucker “misinterpreting” or “misperceiv[ing]” the behavior of others as representing threats to him.

¶7 The circuit court denied Tucker’s motion. The court generally credited Dr. Stress’ report and testimony (“the expert evidence”) but concluded that it did not constitute a new factor. This was based on the court’s determination that the relative deficits and personality traits described by Stress were already evident in the trial record and that the court had taken these dynamics into consideration at sentencing, albeit without the precision afforded by the expert evidence.

4 No. 2024AP887-CR

¶8 In the alternative, the circuit court concluded that, even if the expert evidence constituted a new factor, it did not warrant a sentence modification. The court said that the additional “nuance” regarding Tucker’s mental health provided by the expert evidence did not “diminish,” in the court’s mind, the level of Tucker’s culpability, nor did it change the court’s view on the need for punishment, which the court described as the primary driver of the sentence. The court said that, even if the perspective provided by the expert evidence marginally increased the court’s impression that Tucker could successfully rehabilitate, that would not outweigh the need for punishment. For these reasons, the court concluded, there were “not sufficient grounds” for the court to exercise its discretion to modify the sentence, which the court continued to consider to be “the most appropriate sentence given all the facts and circumstances of this case.” Tucker appeals.

DISCUSSION

Free access — add to your briefcase to read the full text and ask questions with AI

Related

State v. Pettit
492 N.W.2d 633 (Court of Appeals of Wisconsin, 1992)
Rosado v. State
234 N.W.2d 69 (Wisconsin Supreme Court, 1975)
State v. Harbor
2011 WI 28 (Wisconsin Supreme Court, 2011)
State v. Lock
2013 WI App 80 (Court of Appeals of Wisconsin, 2013)
State v. Robert M. Schueller
2024 WI App 40 (Court of Appeals of Wisconsin, 2024)

Cite This Page — Counsel Stack

Bluebook (online)
State v. Mario T. Tucker, Counsel Stack Legal Research, https://law.counselstack.com/opinion/state-v-mario-t-tucker-wisctapp-2025.