State v. Corey L. Gransberry
CourtCourt of Appeals of Wisconsin
Date FiledSeptember 9, 2026
Docket2025AP001770-CR
StatusPublished
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Full 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 9, 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. 2025AP1770-CR Cir. Ct. No. 2022CF2222
STATE OF WISCONSIN IN COURT OF APPEALS
DISTRICT I
STATE OF WISCONSIN,
PLAINTIFF-RESPONDENT,
V.
COREY L. GRANSBERRY,
DEFENDANT-APPELLANT.
APPEAL from a judgment and an order of the circuit court for
Milwaukee County: MICHAEL J. HANRAHAN and KATIE B. KEGEL, Judges.
Affirmed.
Before Colón, P.J., Geenen, and Petrashek, JJ.
¶1 GEENEN, J. Corey L. Gransberry appeals from a judgment of
conviction and a circuit court order denying his postconviction motion alleging
No. 2025AP1770-CR
ineffective assistance of counsel without a Machner1 hearing. Gransberry was
charged with attempted armed robbery and attempted first-degree intentional
homicide with a dangerous weapon, as a party to a crime. The State offered
Gransberry two plea deals, but he rejected them both, proceeded to trial, and was
found guilty of both charges.
¶2 Gransberry argues that trial counsel performed deficiently by failing
to show him “audiovisual evidence” before he rejected the State’s plea offers,
including surveillance footage that captured the crimes and the police interview of
one of his co-actors, Christian Baker, in which Baker directly implicated
Gransberry. Gransberry asserts that trial counsel’s deficiency caused him to
misunderstand the strength of the State’s case and reject favorable plea deals, and
as a result, Gransberry was convicted of a more serious crime and sentenced to
imprisonment exceeding what was offered (or would have been recommended) by
the State in the plea deals.
¶3 We conclude that Gransberry failed to sufficiently allege that his trial
counsel performed deficiently. Accordingly, Gransberry was not entitled to a
Machner hearing, and we affirm the circuit court’s order denying his postconviction
motion without holding one.
BACKGROUND
¶4 In June 2022, the State charged Gransberry with attempted armed
robbery and first-degree reckless injury with the use of a dangerous weapon, as a
1
State v. Machner, 92 Wis. 2d 797, 285 N.W.2d 905 (Ct. App. 1979).
2
No. 2025AP1770-CR
party to a crime, for his role in shooting Juan2 at a Milwaukee gas station. The
complaint alleged that police found Juan lying unresponsive inside the gas station
with two observable gunshot wounds. Police obtained surveillance footage from
the gas station showing that a suspect, later identified as Gransberry, exited a pink
Infiniti, entered the gas station, waited in line at the cashier, and followed Juan
outside. Once back outside, Gransberry and an accomplice, who also emerged from
the pink Infiniti, drew firearms and shot at Juan. Gransberry and the accomplice
then returned to the pink Infiniti, which sped off.
¶5 Police later found the driver of the pink Infiniti, Christian Baker.
According to the complaint, Baker told police that he drove Gransberry and the
accomplice, whom he called “Turkey,” away from the gas station in the pink Infiniti
after they shot Juan. Baker identified Gransberry when presented with his photo.
Gransberry appeared in court with an attorney for his initial appearance, and both
Gransberry and his attorney represented that they had reviewed the criminal
complaint together.
¶6 Detective Thaddeus Schimmels testified at Gransberry’s preliminary
hearing. Detective Schimmels testified about surveillance footage from the gas
station as well as how Baker identified Gransberry as the person who exited the pink
Infiniti and followed Juan into the gas station. Gransberry’s attorney cross-
examined Detective Schimmels about both the surveillance footage and Baker’s
police interview. The State amended the first-degree reckless injury charge to
attempted first-degree intentional homicide.
2
We use a pseudonym to refer to the victim in this case. WIS. STAT. RULE 809.86(1)
(2023-24).
All references to the Wisconsin Statutes are to the 2023-24 version.
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No. 2025AP1770-CR
¶7 The State offered Gransberry two plea deals. The first offer required
a guilty plea to first-degree reckless injury, while armed, and attempted armed
robbery. In exchange, the State agreed to recommend twenty-five years of initial
confinement and twelve years of extended supervision. Gransberry rejected the
offer. The State then offered a plea to first-degree reckless injury, while armed, and
dismissal of the attempted armed robbery charge. In exchange, the State agreed to
recommend fifteen years of initial confinement or substantial prison time, with the
amount left to the discretion of the court.3 This would have capped the possible
maximum sentence at thirty years—twenty years of initial confinement and ten
years of extended supervision. WIS. STAT. §§ 940.23, 939.63(1)(b). Gransberry
also rejected this offer. A jury convicted Gransberry of attempted armed robbery
and attempted first-degree intentional homicide with a dangerous weapon, as a party
to a crime.
¶8 At sentencing, the State specifically cited Gransberry’s refusal to
cooperate with law enforcement as an aggravating factor and argued that
Gransberry’s pride in not snitching on his friends demonstrated callousness. In
imposing Gransberry’s sentence, the circuit court noted Gransberry’s apparent lack
of remorse and imposed a global sentence of twenty-five years’ initial confinement
and fifteen years’ extended supervision.
¶9 Gransberry filed a postconviction motion for relief. He claimed that
trial counsel performed deficiently by not “making sure that [he] had viewed the
audio-visual evidence.” Specifically, he alleged that his young age, mental health
issues, difficulty grasping legal concepts, and the local “no-snitching culture” made
3
Whether the State’s recommended sentence in the second plea offer was fifteen years of
confinement or substantial prison time with the amount left to the discretion of the court is unclear
in the record, but it does not affect our analysis.
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No. 2025AP1770-CR
him disbelieve that Baker cooperated with police, and trial counsel was deficient for
not making Gransberry personally view Baker’s police interview. Gransberry
claimed that, if he had been shown Baker’s police interview, he would have
accepted responsibility for his actions and provided additional information
regarding his co-actor, Turkey, and further asserts that he would have accepted a
plea, cooperated with police, and improved the circuit court’s low impression of his
character.
¶10 The circuit court concluded that Gransberry failed to adequately plead
deficient performance. It observed that the record established Gransberry’s
knowledge of both the surveillance footage and Baker’s interview with police. It
stated that Gransberry’s assertion that “he could not fully grasp the emotional
weight of [Baker’s] confession or the extent of his cooperation without personally
viewing the materials ... [was] not sufficient to establish deficient performance.” It
rejected Gransberry’s argument “that defense counsel must ensure a defendant
views emotionally charged materials like a co-defendant’s confession—particularly
when no request to do so is made[.]” Accordingly, the circuit court denied
Gransberry’s motion without holding a Machner hearing.
¶11 Gransberry appeals.
DISCUSSION
I. Gransberry failed to plead material facts establishing deficient
performance.
¶12 On appeal, Gransberry argues that the material facts he asserted in his
postconviction motion entitle him to relief. Accordingly, he claims he was entitled
to a Machner hearing.
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No. 2025AP1770-CR
¶13 When a court denies a postconviction motion alleging ineffective
assistance of counsel without a Machner hearing, we evaluate two issues de novo.
State v. Jackson, 2023 WI 3, ¶8, 405 Wis. 2d 458, 983 N.W.2d 608. “First, we
assess whether the motion on its face alleges sufficient material and non-conclusory
facts that, if true, would entitle the defendant to relief.” Id. “Second, we determine
whether the record conclusively demonstrates that the defendant is not entitled to
relief.” Id. A defendant is entitled to a Machner hearing if their postconviction
motion “alleges sufficient and non-conclusory facts which would entitle the
defendant to relief and the record does not conclusively establish otherwise[.]”
Jackson, 405 Wis. 2d 458, ¶8. However, “[i]f the motion does not raise facts
sufficient to entitle the defendant to relief, or if it presents only conclusory
allegations, or if the record conclusively demonstrates that the defendant is not
entitled to relief, the circuit court has the discretion to grant or deny a hearing.”
State v. Ruffin, 2022 WI 34, ¶28, 401 Wis. 2d 619, 974 N.W.2d 432.
¶14 To prove a claim of ineffective assistance of counsel, the defendant
must show that trial counsel performed deficiently and that this deficient
performance was prejudicial. Strickland v. Washington, 466 U.S. 668, 687 (1984).
To prove deficient performance, the defendant must demonstrate that trial counsel’s
performance fell below an objective standard of reasonableness. State v.
Breitzman, 2017 WI 100, ¶38, 378 Wis. 2d 431, 904 N.W.2d 93. There is a “strong
presumption” that trial counsel’s conduct fell “within the wide range of reasonable
professional assistance[.]” Strickland, 466 U.S. at 689. “Prejudice occurs where
the attorney’s error is of such magnitude that there is a reasonable probability that,
absent the error, ‘the result of the proceeding would have been different.’” State v.
Erickson, 227 Wis. 2d 758, 769, 596 N.W.2d 749 (1999) (quoting Strickland, 466
U.S. at 694). If a reviewing court determines that counsel did not perform
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No. 2025AP1770-CR
deficiently, it need not discuss whether the defendant was prejudiced. Strickland,
466 U.S. at 697.
¶15 As the circuit court correctly observed, the record reflects that
Gransberry knew about the surveillance footage and about the nature of Baker’s
statement to police, even if he did not personally view Baker’s police interview
before making the decision to reject the State’s plea offers and proceed to trial. By
its own terms, many of the facts supporting the criminal complaint were derived
from the surveillance footage. And, the criminal complaint stated that Baker gave
a statement to police that implicated Gransberry. Gransberry was in court with his
attorney for his initial appearance when he stated that his attorney had reviewed the
complaint with him. Gransberry also appeared by Zoom for his preliminary hearing
where Detective Schimmels testified about the contents of the surveillance footage
and his interview with Baker, stating that Baker identified Gransberry as the
passenger in the pink Infinity who followed the victim out of the gas station,
produced a firearm, and shot Juan. Gransberry’s trial counsel subsequently cross-
examined Detective Schimmels about the surveillance video and Baker’s police
interview.
¶16 There is no allegation that trial counsel himself failed to review the
discovery, understand its significance, or inform Gransberry of its contents, nor is
there any indication that Gransberry requested to review any evidence with counsel,
including the surveillance footage or Baker’s police interview. The standard for
evaluating counsel’s effectiveness is not whether particular items of evidence are
directly shown to the defendant, but whether counsel adequately conveys the
substance and strategic significance of the State’s evidence, and there is no
allegation in Gransberry’s postconviction motion that trial counsel failed to convey
the strength and significance of the State’s evidence. This conclusion is consistent
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No. 2025AP1770-CR
with Strickland, which emphasizes counsel’s obligation to consult with and advise
a defendant on important decisions and developments, and to generally act
reasonably within the scope of that representation consistent with the prevailing
norms of practice. Strickland, 466 U.S. 668 at 688. Here, the prevailing norms of
practice as established by the rules of professional responsibility require counsel to
explain a matter to the extent reasonably necessary to permit the client to make
informed decisions. See SCR 20:1.4.
¶17 Gransberry emphasizes his vulnerability due to his youth, limited
education, mental health issues, and cognitive limitations, arguing that these factors
should have heightened counsel’s obligation to ensure Gransberry personally
viewed the audiovisual evidence and, in particular, Baker’s police interview.
However, Gransberry’s assertion that defense counsel must ensure a defendant
reviews particular pieces of evidence absent any request to do so lacks legal
authority.4 It would be especially burdensome to require defense counsel to force a
client to personally view particular pieces of evidence when the defendant was
already aware of the existence and content of that evidence yet made no request to
view it. Any other holding would require that counsel correctly determine whether
reviewing a particular piece or pieces of evidence may or may not affect a
defendant’s decision-making process or, in the absence of counsel making such a
determination, force a client to specifically review all evidence, piece by piece, so
that defense counsel can identify the possible significance of every piece.
4
Moreover, Gransberry suggests no framework by which defense counsel can determine
when the client is too young, too uneducated, or too cognitively impaired such that defense counsel
has a heightened duty to ensure the client personally views particular pieces of evidence. Given
the lack of guiding principles, we view Gransberry’s suggested rule as unworkable in practice.
8
No. 2025AP1770-CR
¶18 Here, Gransberry was aware of the existence and content of both the
surveillance footage and Baker’s police interview based on his review with counsel
of the criminal complaint and Detective Schimmel’s testimony at the preliminary
hearing. On this record, Gransberry has not alleged sufficient facts that would, if
true, establish deficient performance; therefore, he could not make a showing of
ineffective assistance. Strickland, 466 U.S. at 697. Accordingly, the circuit court
was not required to hold a Machner hearing on Gransberry’s claim for
postconviction relief. Jackson, 405 Wis. 2d 458, ¶8.
CONCLUSION
¶19 We conclude that Gransberry did not plead sufficient facts to establish
that trial counsel performed deficiently. Accordingly, we affirm the judgment and
the order denying Gransberry’s ineffective assistance of counsel claim without a
Machner hearing.
By the Court.—Judgment and order affirmed.
Recommended for publication in the official reports.
9