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No. 10660957
United States Court of Appeals for the Ninth Circuit
Carrillo v. Matteson
No. 10660957 · Decided August 26, 2025
No. 10660957·Ninth Circuit · 2025·
FlawFinder last updated this page Apr. 2, 2026
Case Details
Court
United States Court of Appeals for the Ninth Circuit
Decided
August 26, 2025
Citation
No. 10660957
Disposition
See opinion text.
Full Opinion
NOT FOR PUBLICATION FILED
UNITED STATES COURT OF APPEALS AUG 26 2025
MOLLY C. DWYER, CLERK
U.S. COURT OF APPEALS
FOR THE NINTH CIRCUIT
OSCAR ALVAREZ CARRILLO, No. 23-3559
D.C. No.
Petitioner - Appellant, 3:22-cv-07776-JSC
v.
MEMORANDUM*
GISELLE MATTESON; PEOPLE OF THE
STATE OF CALIFORNIA,
Respondents - Appellees.
Appeal from the United States District Court
for the Northern District of California
Jacqueline Scott Corley, District Judge, Presiding
Submitted August 22, 2025**
San Francisco, California
Before: CHRISTEN, LEE, and BRESS, Circuit Judges.
Oscar Alvarez Carrillo appeals the district court’s denial of his habeas petition
under 28 U.S.C. § 2254. Carrillo was convicted in California state court of first
degree murder and sentenced to 30 years to life in prison. Carrillo did not dispute
*
This disposition is not appropriate for publication and is not precedent
except as provided by Ninth Circuit Rule 36-3.
**
The panel unanimously concludes this case is suitable for decision
without oral argument. See Fed. R. App. P. 34(a)(2).
that he killed Salvador Hernandez and instead claimed self-defense. Carrillo argues
that his trial counsel was ineffective under Strickland v. Washington, 466 U.S. 668
(1984), for failing to object to statements by the prosecution which he claims (1)
accused defense counsel of fabricating his version of events and (2) diluted the
burden of proof. The California Court of Appeal affirmed Carrillo’s conviction on
direct appeal and denied his state habeas petition. The California Supreme Court
summarily denied Carrillo’s petition for review.
We review the district court’s decision denying § 2254 relief de novo. Bolin
v. Davis, 13 F.4th 797, 804 (9th Cir. 2021). Carrillo’s petition is governed by the
Antiterrorism and Effective Death Penalty Act of 1996 (AEDPA), which bars relief
unless the state court’s decision “was contrary to, or involved an unreasonable
application of, clearly established Federal law, as determined by the Supreme Court
of the United States,” or was “based on an unreasonable determination of the facts
in light of the evidence presented in the State court proceeding.” 28 U.S.C.
§ 2254(d). We have jurisdiction under 28 U.S.C. §§ 1291 and 2253, and we affirm.
1. Counsel’s performance is deficient when it falls “below an objective
standard of reasonableness . . . under prevailing professional norms.” Strickland,
466 U.S. at 688. In this case, the California Court of Appeal reasonably concluded
that trial counsel did not perform deficiently. Under AEDPA, the state court’s
decision was not “objectively unreasonable,” Bell v. Cone, 535 U.S. 685, 699 (2002),
2 23-3559
nor was it based on an unreasonable determination of the facts.
First, the California Court of Appeal reasonably determined that the
prosecutor’s reference to “[t]his version of events that’s being fabricated by the
defense” was not misconduct, such that trial counsel was not deficient in declining
to object. A prosecutor “stray[s] beyond proper advocacy” by arguing “that defense
counsel . . . fabricated evidence.” Sassounian v. Roe, 230 F.3d 1097, 1106 (9th Cir.
2000), as amended on denial of reh’g (Dec. 6, 2000). However, where a case
“essentially reduces to which of two conflicting stories is true, it may be reasonable”
to argue “that one of the two sides is lying.” United States v. Sarno, 73 F.3d 1470,
1496–97 (9th Cir. 1995) (quoting United States v. Molina, 934 F.2d 1440, 1445 (9th
Cir. 1991)).
The California Court of Appeal reasonably determined that, in context, the
prosector did not attack defense counsel personally. Instead, the prosecution argued
that Carrillo’s defense was “fabricated” in the sense that it was a product of Carrillo’s
own lies and that it was otherwise implausible and inconsistent with the evidence.
The prosecutor’s statements shortly before and after the challenged remarks
demonstrate that his comments were directed at Carrillo’s account of events, as the
prosecutor argued that Carrillo’s claim of self-defense “makes no sense,” that the
knife allegedly held to Carrillo’s throat was “a fabrication,” and that there was no
support for “[t]his entire story of his other than it came out of [Carrillo’s] mouth.”
3 23-3559
At the end of his argument the prosecutor reiterated that “[t]he defendant’s story is
a lie.” Given these statements, it was not objectively unreasonable for the California
Court of Appeal to conclude the prosecutor’s remarks were proper, such that defense
counsel was not deficient in not objecting.
Second, the California Court of Appeal reasonably determined that the
prosecutor did not dilute the beyond a reasonable doubt burden of proof by implying
that the jury should convict if the prosecutor’s account was “reasonable” and
Carrillo’s was “unreasonable.” The prosecutor told the jury that its job was to weigh
the evidence and to determine what was “reasonable” and “unreasonable,” and that
in considering circumstantial evidence jurors should “accept only reasonable
conclusions and reject any that are unreasonable.” Given the court’s repeated
instructions regarding the reasonable doubt standard, the California Court of Appeal
reasonably concluded that the jury would not have understood the prosecutor’s
remarks as lessening the burden of proof, and, thus, that defense counsel was not
deficient for failing to object.
2. The California Court of Appeal was also not objectively unreasonable in
concluding that, even if defense counsel acted deficiently in failing to object to the
prosecution’s remarks, Carrillo was not prejudiced because the evidence
overwhelmingly established his guilt. Prejudice requires “a reasonable probability
that . . . the result of the proceeding would have been different.” Strickland, 466
4 23-3559
U.S. at 694. The evidence indicated that Carrillo, who was 28 and weighed 190
pounds, pinned Hernandez, who was 63 and weighed 159 pounds, to the bedroom
mattress and stabbed him repeatedly. Hernandez was cut or stabbed at least 75 times.
Numerous witnesses saw the attack. Carrillo’s claim that he was ambushed by
Hernandez and another man was corroborated only by his cousin, who did not
mention this third man on the night of the attack. The jury was able to consider
Carrillo’s self-defense theory, and there is no basis to conclude that striking the
prosecution’s remarks would have affected the result. Accordingly, the California
Court of Appeal’s prejudice determination was not contrary to or an unreasonable
application of Strickland, nor was it based on an unreasonable determination of the
facts.
AFFIRMED.
5 23-3559
Plain English Summary
NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS AUG 26 2025 MOLLY C.
Key Points
01NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS AUG 26 2025 MOLLY C.
02COURT OF APPEALS FOR THE NINTH CIRCUIT OSCAR ALVAREZ CARRILLO, No.
03MEMORANDUM* GISELLE MATTESON; PEOPLE OF THE STATE OF CALIFORNIA, Respondents - Appellees.
04Oscar Alvarez Carrillo appeals the district court’s denial of his habeas petition under 28 U.S.C.
Frequently Asked Questions
NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS AUG 26 2025 MOLLY C.
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