State v. Joshua B. Kapfhamer

Court of Appeals of Wisconsin·Decided July 7, 2026·No. 2023AP002356-CR·Unpublished

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. July 7, 2026 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. 2023AP2356-CR Cir. Ct. No. 2015CF4836

STATE OF WISCONSIN IN COURT OF APPEALS DISTRICT I

STATE OF WISCONSIN,

PLAINTIFF-RESPONDENT,

V.

JOSHUA B. KAPFHAMER,

DEFENDANT-APPELLANT.

APPEAL from a judgment and an order of the circuit court for Milwaukee County: JEFFREY A. WAGNER, Judge. Affirmed.

Before Donald, C.J., Colón, P.J., Geenen, J.

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). No. 2023AP2356-CR

¶1 PER CURIAM. Joshua B. Kapfhamer appeals from a judgment of conviction for homicide by operation of a motor vehicle with a restricted controlled substance and an order of the circuit court denying his postconviction motion without a hearing. On appeal, Kapfhamer argues that he is entitled to a hearing on his postconviction motion for claims of ineffective assistance of counsel and an invalid waiver of his right to testify based on what he alleges was erroneous advice from trial counsel. He further argues that the evidence was insufficient to support his conviction. For the reasons set forth below, we affirm.

BACKGROUND

¶2 The State charged Kapfhamer with reckless driving causing great bodily harm related to a vehicle collision that occurred at the intersection of South 43rd Street and West Lincoln Avenue on November 2, 2015. As alleged in the criminal complaint, Kapfhamer was waiting in his vehicle to turn left from 43rd Street to Lincoln Avenue, and when the light turned yellow, Kapfhamer turned and collided with a motorcycle driven by James Pulkilla. After the accident, Kapfhamer admitted to police that he had “smoked three bowls of marijuana” earlier in the day, and a blood test later confirmed that an active ingredient in marijuana, delta-9-tetrahydrocannabinol, was present in his blood. After Pulkilla died of his injuries, the State amended the charge to homicide by operation of a motor vehicle with a restricted controlled substance.

¶3 The case proceeded to a jury trial. Kapfhamer waived his right to testify in his defense, and the jury found Kapfhamer guilty as charged. The circuit court subsequently sentenced Kapfhamer to 20 years of imprisonment, composed of 12 years of initial confinement and 8 years of extended supervision.

2 No. 2023AP2356-CR

¶4 Kapfhamer filed a postconviction motion, in which he raised a claim of ineffective assistance of counsel, arguing that trial counsel inaccurately advised him that the jury would be informed of his two prior convictions stemming from operating a vehicle while intoxicated if he testified in his defense. The circuit court assumed without deciding that trial counsel’s performance was deficient. As to prejudice, the court rejected Kapfhamer’s argument that prejudice should be presumed in this case, and found that Kapfhamer presented only conclusory allegations to support prejudice. The court denied Kapfhamer’s motion without a hearing.

¶5 Kapfhamer appeals. Additional relevant facts are referenced below.

DISCUSSION

¶6 On appeal, Kapfhamer raises three arguments: (1) ineffective assistance of counsel; (2) an invalid waiver of his right to testify; and (3) the sufficiency of the evidence to support his conviction. While Kapfhamer raises the sufficiency of the evidence as his third argument on appeal, we first turn to the sufficiency of the evidence to support Kapfhamer’s conviction for homicide by operation of a motor vehicle with a restricted controlled substance.

I. Sufficiency of the Evidence

¶7 In reviewing a challenge to the sufficiency of the evidence, this court cannot “reverse a conviction unless the evidence, viewed most favorably to the [S]tate and the conviction, is so insufficient in probative value and force that it can be said as a matter of law that no trier of fact, acting reasonably, could have found guilt beyond a reasonable doubt.” State v. Poellinger, 153 Wis. 2d 493, 501, 451 N.W.2d 752 (1990). “[A]n appellate court may not substitute its judgment for that

3 No. 2023AP2356-CR

of the trier of fact,” and “[i]f any possibility exists that the trier of fact could have drawn the appropriate inferences from the evidence adduced at trial to find the requisite guilt, an appellate court may not overturn a verdict[.]” Id. at 507. Whether the evidence is direct or circumstantial, the standard for evaluating the sufficiency of the evidence remains the same. Id. at 503. We review a challenge to the sufficiency of the evidence independently. State v. Smith, 2012 WI 91, ¶24, 342 Wis. 2d 710, 817 N.W.2d 410.

¶8 The State was required to prove three elements for the offense of homicide by operation of a motor vehicle with a restricted controlled substance: (1) the defendant operated a vehicle; (2) the defendant’s operation of the vehicle caused the death of the victim; and (3) the defendant had a detectable amount of a restricted controlled substance in his blood at the time he operated the vehicle. See WIS JI—CRIMINAL 1187; WIS. STAT. § 940.09(1)(am).1 To cause the victim’s death means “the defendant’s operation of a vehicle was a substantial factor in producing the death.” WIS JI—CRIMINAL 1187 (footnote omitted). Kapfhamer does not dispute the first or third elements. He argues that the evidence was insufficient to support the second element, that his operation of his vehicle caused Pulkilla’s death.

¶9 In support of his argument, Kapfhamer cites testimony from the trial indicating that Pulkilla may have played a role in causing the accident to the point where Kapfhamer contends that the accident would have happened regardless of anything he did or did not do. While we agree that testimony of this nature was introduced at trial, it was nonetheless the jury’s function to determine the weight

1 All references to the Wisconsin Statutes are to the 2023-24 version.

4 No. 2023AP2356-CR

and credibility to assign to the testimony. See Poellinger, 153 Wis. 2d at 503. Considering the evidence as a whole, it was within the jury’s province to disregard this testimony and find that Kapfhamer caused the accident by relying on other evidence presented. See id. Merely identifying that there is some evidence that might have supported a different verdict is not enough to demonstrate that the verdict is not supported by credible evidence. See Smith, 342 Wis. 2d 710, ¶¶24, 33 (“[T]his court will uphold the conviction if there is any reasonable hypothesis that supports it.”).

¶10 The jury heard testimony from two separate witnesses to the accident who were stopped at the intersection on a red light. Both described seeing a motorcycle cross the intersection, and then another vehicle attempt to make a left-hand turn before hitting the motorcycle. Both witnesses were familiar with the intersection and believed that the motorcycle had a green light due to the state of their own lights. Additionally, Officer William Hanney, an accident reconstruction expert, described how Kapfhamer and Pulkilla likely moved through the intersection and how the ensuing accident occurred. He opined that, based on the skid marks on the pavement, the motorcycle appeared to take “evasive action” before Kapfhamer struck it with his vehicle “head-on.”

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

State v. Joshua B. Kapfhamer, (Wis. Ct. App. 2026).

State v. Joshua B. Kapfhamer (State v. Joshua B. Kapfhamer) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

Related

Strickland v. Washington
466 U.S. 668 (Supreme Court, 1984)
State v. Jaramillo
2009 WI App 39 (Court of Appeals of Wisconsin, 2009)
State v. Flynn
527 N.W.2d 343 (Court of Appeals of Wisconsin, 1994)
State v. Allen
2004 WI 106 (Wisconsin Supreme Court, 2004)
State v. Poellinger
451 N.W.2d 752 (Wisconsin Supreme Court, 1990)
Bishop v. City of Burlington
2001 WI App 154 (Court of Appeals of Wisconsin, 2001)
United Cooperative v. Frontier FS Cooperative
2007 WI App 197 (Court of Appeals of Wisconsin, 2007)
State v. Huebner
2000 WI 59 (Wisconsin Supreme Court, 2000)
State v. Angelica C. Nelson
2014 WI 70 (Wisconsin Supreme Court, 2014)
State v. Theophilous Ruffin
2022 WI 34 (Wisconsin Supreme Court, 2022)
State v. Balliette
2011 WI 79 (Wisconsin Supreme Court, 2011)
State v. Smith
2012 WI 91 (Wisconsin Supreme Court, 2012)
West Capitol, Inc. v. Village of Sister Bay
2014 WI App 52 (Court of Appeals of Wisconsin, 2014)