Peo v. Phan

Colorado Court of Appeals·Decided November 26, 2025·No. 22CA2073·Unpublished

Opinion

22CA2073 Peo v Phan 11-26-2025 COLORADO COURT OF APPEALS

Court of Appeals No. 22CA2073 Jefferson County District Court No. 21CR1228 Honorable Philip J. McNulty, Judge

The People of the State of Colorado, Plaintiff-Appellee, v. Dong Ngoc Phan, Defendant-Appellant.

JUDGMENT AFFIRMED

Division II

Opinion by JUDGE MEIRINK

Fox and Brown, JJ., concur

NOT PUBLISHED PURSUANT TO C.A.R. 35(e)

Announced November 26, 2025

Philip J. Weiser, Attorney General, Majid Yazdi, Senior Assistant Attorney General, Denver, Colorado, for Plaintiff-Appellee

Megan A. Ring, Colorado State Public Defender, Jeffrey A. Wermer, Deputy State Public Defender, Denver, Colorado, for Defendant-Appellant

¶1 Defendant, Dong Ngoc Phan, appeals his convictions of attempted second degree murder and first degree assault. We affirm.

I. Background

¶2 In May 2021, Phan called 911 to report a stabbing at the apartment he shared with his girlfriend, T.H. Phan said to the 911 operator, “Help me. I stabbed my girlfriend.” The 911 operator collected Phan’s address and heard Phan say, “Please help me. Someone stabbed my . . . .” Phan started to say “wife” but went on to say “girlfriend” instead.

¶3 When officers arrived on scene, T.H. and Phan were outside the apartment building. T.H. was unconscious and bleeding, and Phan was holding her. Phan had blood on the front of his jacket, hands, and pants. Officers found drops of blood leading from the couple’s location outside into their bedroom in their apartment, where blood soaked the carpet. A crime scene analyst found a knife in a laundry basket in a closet when they searched the apartment.

¶4 Police transported Phan to the police station and charged him with attempted first degree murder and first degree assault. Detective David Noble, the lead detective on the case, interviewed

Phan on the day of the incident in an interview room at the police station. T.H. was transported to the hospital and underwent surgery for five stab wounds — one on her stomach, one below her breast, two on her lower back, and one on the back of her neck. Noble interviewed T.H. five days later at the hospital.

¶5 At trial, Noble testified that T.H. stated the following during their interview:

• T.H. decided to kill herself after Phan left the apartment.

She went to the kitchen, grabbed a knife, and walked back into their bedroom.

• T.H. stabbed herself in the stomach. Phan then entered the apartment, and the two struggled over the knife.

• During the struggle with Phan, T.H. somehow got stabbed in the back of her neck and on her back left side near her kidney. Phan was able to get the knife away and threw it into a laundry basket.

• Phan “did not stab her.”

• T.H. thought about committing suicide three or four times before, and she and Phan had made a pact to commit suicide in the weeks before the incident.

¶6 Shortly after the hospital interview, T.H. called Noble to amend her prior statement. Noble testified that [T.H.]

changed [her statement] slightly to state that she tried to commit suicide to show her love for Mr. Phan. I clarified with her that she initially told me it was because she was depressed. And then she said it’s — due to Mr. Phan’s jealousy, she wanted to prove that she loved only him, along with her depression, on why she [attempted to] commit suicide.

¶7 T.H. later met with the prosecution’s investigator, Kate Battan, and again changed her story. T.H. told Battan that she and Phan “were arguing, and that she knocked over a humidifier that was sitting on a table, out of anger and frustration. And then he started kicking her. And then he grabbed a knife from underneath the mattress. And then he started stabbing her.”

¶8 T.H.’s testimony at trial was generally consistent with what she told Battan. T.H. testified that Phan was looking for his keys when the two started to argue. T.H. said she pushed the humidifier because she was upset, Phan kicked her, and she fell to the ground. Then, Phan lifted the mattress on the bed, pulled out a knife, and stabbed her. When asked why she gave Noble a different story, T.H. said she was trying to protect Phan. She also testified that she gave

Battan a different version of events “[b]ecause that’s the truth. I don’t want to lie.”

¶9 Following the presentation of evidence, the court discussed jury instructions with the prosecutors and defense counsel. Phan requested instructions on the affirmative defenses of intoxication, heat of passion, and self-defense. The trial court denied the request for a heat of passion instruction and a self-defense instruction, but it granted the request for an intoxication instruction.

¶ 10 The jury ultimately found Phan guilty of attempted second degree murder and first degree assault. Phan was sentenced to eighteen years in the custody of the Department of Corrections. Phan appeals his convictions.

II. Analysis

¶ 11 Phan argues that the trial court erred by (1) failing to correctly instruct the jury on his affirmative defenses; (2) allowing Noble to provide improper lay testimony because his testimony was based on specialized knowledge, training, and his experience as a detective; and (3) permitting Noble to improperly opine as to the truthfulness of T.H.’s statements when he interviewed her. We disagree on all counts.

A. Affirmative Defense Jury Instructions

¶ 12 Phan argues that the trial court erred by denying (1) a self- defense jury instruction and (2) a use of physical force — special relationship instruction. He contends that sufficient evidence supported the instructions. We disagree.

1. The Trial Court Did Not Err by Denying Phan’s Request for a Self-Defense Jury Instruction

¶ 13 Phan contends that the trial court erred by refusing to provide a jury instruction on self-defense because the testimony supported an inference that Phan defended himself against T.H. We disagree.

a. Additional Applicable Facts

¶ 14 At trial, several law enforcement officers detailed what they saw at the apartment or what Phan said to them shortly after the incident.

• Agent Garret Compton was the first officer on the scene and spoke with Phan. Phan told Compton that he and T.H. were arguing. Phan became suspicious that another man was in the apartment, “so he chose to barricade himself in the bedroom” and “used a piece of furniture to block the door and separate himself from [T.H.]”

• Detective Monique Gilstrap, one of the detectives who executed the search warrant, testified that the TV stand in the bedroom was pulled away from the wall, and officers could not completely open the bedroom door because it was as if “somebody was using it to try to block the door, to keep that door closed.” Gilstrap also testified that the chain part of the sliding lock on the door was on the floor behind the door and not attached to the wall.

• Crime Scene Analyst Sheri Shimamoto testified that there was what looked like a humidifier that came apart, among other items, scattered on the floor.

¶ 15 T.H. gave the following trial testimony:1 • T.H. and Phan were in their apartment all day. They smoked marijuana in the morning and argued about Phan’s keys.

• T.H. was upset and pushed the humidifier to the ground.

1 T.H.’s first language is Vietnamese. T.H. provided testimony at trial through a certified court interpreter. There were a few instances in which T.H. did not seem to understand a question or asked the prosecutor or defense counsel to clarify a question.

• Phan barricaded himself in the bedroom. T.H. did not break down the door, break the lock off the door, or push back the TV stand when trying to enter their bedroom.

• T.H. did not attack, push, or hit Phan.

• When asked by the prosecution, T.H. admitted to using marijuana earlier and “being irrational.”

• T.H. testified that at some point she went into the kitchen and grabbed a knife.

b. Jury Instruction Conference

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