State v. Aguilar-Osorio

CourtCourt of Appeals of Arizona
DecidedJuly 1, 2026
Docket1 CA-CR 25-0227
StatusUnpublished
AuthorDavid B. Gass

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

Bluebook
State v. Aguilar-Osorio, (Ark. Ct. App. 2026).

Opinion

NOTICE: NOT FOR OFFICIAL PUBLICATION. UNDER ARIZONA RULE OF THE SUPREME COURT 111(c), THIS DECISION IS NOT PRECEDENTIAL AND MAY BE CITED ONLY AS AUTHORIZED BY RULE.

IN THE ARIZONA COURT OF APPEALS DIVISION ONE

STATE OF ARIZONA, Appellee,

v.

OSMAN ALFREDO AGUILAR-OSORIO, Appellant.

No. 1 CA-CR 25-0227

FILED 07-01-2026

Appeal from the Superior Court in Maricopa County No. CR2023-106700-001 The Honorable Kristin Culbertson, Judge

AFFIRMED

COUNSEL

Arizona Attorney General’s Office, Phoenix By Joseph A. Newberg, II Counsel for Appellee

Law Office of Michael J. Dew, Phoenix By Michael J. Dew Counsel for Appellant STATE v. AGUILAR-OSORIO Decision of the Court

MEMORANDUM DECISION

Presiding Judge David B. Gass delivered the decision of the court, in which Judge Anni Hill Foster and Judge D. Andrew Gaona joined.

G A S S, Judge:

¶1 Osman Alfredo Aguilar-Osorio appeals his convictions and sentences for second-degree murder and aggravated assault. Aguilar- Osorio argues the superior court erred when it did not admit evidence of the murder victim’s prior criminal acts to support his self-defense claim. Aguilar-Osorio also argues the State produced insufficient evidence to convict him of aggravated assault on the assault victim. Because the superior court did not err in rejecting Aguilar-Osorio’s proffered evidence or denying his Rule 20 motion regarding the aggravated assault charge, the court affirms.

FACTUAL AND PROCEDURAL HISTORY

¶2 The court views the facts in the light most favorable to sustaining the superior court’s ruling. See State v. Fontes, 195 Ariz. 229, 230 ¶ 2 (App. 1998). The court will not reweigh the evidence on appeal. State v. Lee, 189 Ariz. 590, 603 (1997).

I. After Aguilar-Osorio started getting behind on payments for the property, the murder victim arrived at the property claiming ownership.

¶3 Aguilar-Osorio owned a house in Phoenix. He fell behind on mortgage payments after an illness. The murder victim and his Spanish- speaking employee (who worked at a motel the murder victim owned and who is also the assault victim) went to the house unarmed. The murder victim claimed to have bought the house at an auction and planned to rent the property out to the assault victim. The murder victim needed the assault victim to translate that information to Aguilar-Osorio in Spanish. The parties stipulated the assault victim had no ownership interest in the property.

¶4 When the victims arrived at the house, the murder victim posted “sold” notices near the front door while the assault victim rang the doorbell. After the assault victim told Aguilar-Osorio what was happening,

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Aguilar-Osorio replied, “How is it your house, you son of a bitch?” Aguilar- Osorio then opened the security door and invited the 2 victims inside.

¶5 Inside, Aguilar-Osorio told the assault victim he wanted to keep the house and asked the murder victim to stop recording. When the murder victim walked out back toward the carport, Aguilar-Osorio became more upset and quickly followed him. The assault victim followed shortly afterward. Though Aguilar-Osorio asked the murder victim not to go into the carport, he did anyway. Inside the carport, the murder victim removed a pole propping open the trunk of Aguilar-Osorio’s SUV, causing it to slam shut. When the murder victim turned around, Aguilar-Osorio used his knife to cut the murder victim’s neck. The murder victim died of blood loss.

¶6 When the assault victim got to the carport, he saw Aguilar- Osorio come out of the carport holding a bloody knife. The assault victim froze, and Aguilar-Osorio told him to “leave if you don’t want any problems.” The assault victim said he was shocked, promptly went back inside, and left through the front door. In leaving, the assault victim walked backwards so he could watch Aguilar-Osorio to be sure he would not attack. When the assault victim got back to the murder victim’s motel, he called the police.

¶7 At the same time, Aguilar-Osorio called 911 and confessed. Aguilar-Osorio said he was “fed up” with the bank and people trying to rip him off. So when the victims arrived at the property, Aguilar-Osorio said he felt threatened and wanted to teach them a lesson.

II. After a grand jury indicted Aguilar-Osorio, he filed 1 motion before trial and moved for a Rule 20 motion in furtherance of his self-defense claim.

¶8 A grand jury indicted Aguilar-Osorio for 1 count of second- degree murder and 1 count of aggravated assault. Before trial, Aguilar- Osorio learned the murder victim had been convicted of sexual abuse of his female employees. Aguilar-Osorio moved to admit evidence of the murder victim’s prior acts of sexual abuse, arguing the evidence was necessary for him to present a complete defense. The superior court denied the motion after oral argument. Though the superior court concluded Aguilar-Osorio could meet the evidentiary burden by clear and convincing evidence, it found the claims of sexual abuse and harassment were not relevant to Aguilar-Osorio’s own description of what happened on the day of the incident. The superior court found the murder victim causing the trunk to slam shut and turning around unarmed were too different from the murder

3 STATE v. AGUILAR-OSORIO Decision of the Court

victim’s alleged sexual abuse of his female employees. The superior court also found allowing the evidence would be too prejudicial because the similarities would not be specific enough.

¶9 The assault victim testified consistent with the above description of events. During trial, Aguilar-Osorio moved under Rule 20 for a judgment of acquittal as to both counts. The superior court denied the motion as to both counts, finding sufficient evidence to proceed with the jury.

¶10 Aguilar-Osorio, then testified in support of his self-defense claim, referring to the murder victim as a “son of a bitch” and a “fucking idiot.” Aguilar-Osorio asserted when he and the murder victim were in the carport, the murder victim approached Aguilar-Osorio and got on top of him, which made him confused and fearful. Though Aguilar-Osorio first testified he only hit the murder victim “with this hand,” he later acknowledged cutting the murder victim’s throat.

¶11 The jury convicted Aguilar-Osorio on 1 count of second- degree murder and 1 count of aggravated assault. The superior court sentenced Aguilar-Osorio to concurrent terms of 16 years on the second- degree murder count and 7.5 years on the aggravated assault count, giving him 820 days of presentence incarceration credit.

¶12 The court has jurisdiction over Aguilar-Osorio’s timely appeal under Article VI, Section 9, of the Arizona Constitution, and A.R.S. §§ 12-120.21.A.1, 13-4031, and -4033.A.1.

DISCUSSION

¶13 Aguilar-Osorio argues the superior court erred by (1) refusing to allow evidence of the murder victim’s prior criminal acts and (2) denying his Rule 20 motion as to the aggravated assault charge against him.

¶14 The court reviews the superior court’s evidentiary rulings for abuse of discretion. State v. Inzunza, 234 Ariz. 78, 83 ¶ 18 (App. 2014). The superior court abuses its discretion if “no reasonable judge would have reached the same result under the circumstances.” State v. Armstrong, 208 Ariz. 345, 354 ¶ 40 (2004) (citation omitted). And the court reviews a Rule 20 motion in determining the sufficiency of the evidence de novo. See State v. Anderson, 255 Ariz. 320, 323 ¶ 7 (App. 2023).

¶15 “[T]he court must enter a judgment of acquittal on any offense charged in an indictment, information, or complaint if there is no

4 STATE v.

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Related

State v. Armstrong
93 P.3d 1061 (Arizona Supreme Court, 2004)
State v. Fontes
986 P.2d 897 (Court of Appeals of Arizona, 1998)
State v. Lee
944 P.2d 1204 (Arizona Supreme Court, 1997)
State v. Fish
213 P.3d 258 (Court of Appeals of Arizona, 2009)
State v. Schurz
859 P.2d 156 (Arizona Supreme Court, 1993)
State of Arizona v. Miguel Francisco Inzunza
316 P.3d 1266 (Court of Appeals of Arizona, 2014)
State of Arizona v. George Anthony Dominguez Jr.
338 P.3d 966 (Court of Appeals of Arizona, 2014)

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Bluebook (online)
State v. Aguilar-Osorio, Counsel Stack Legal Research, https://law.counselstack.com/opinion/state-v-aguilar-osorio-arizctapp-2026.