Luis Moron Romero v. the State of Texas

Court of Appeals of Texas·Decided July 28, 2026·No. 01-22-00639-CR·Published

Opinion

Opinion issued July 28, 2026.

In the

Court of Appeals for the

First District of Texas ———————————— NO. 01-22-00639-CR ——————————— LUIS MORON ROMERO, Appellant v. THE STATE OF TEXAS, Appellee

On Appeal from the 185th District Court Harris County, Texas Trial Court Case No. 1613284

MEMORANDUM OPINION

This appeal returns to us on remand from the Texas Court of Criminal

Appeals. A jury found appellant Luis Moron Romero guilty of murder and sentenced

him to life imprisonment. In two issues, appellant argues that the trial court erred by

(1) denying defense counsel’s request for a jury instruction on the lesser-included offense of manslaughter and (2) finding that appellant gave effective consent for the

police to obtain a buccal swab to collect his DNA without a warrant. A prior panel

of this Court overruled appellant’s first issue but sustained his second after

concluding that the State failed to prove by clear and convincing evidence that

appellant’s consent to the buccal swab was knowing and voluntary.1 The trial court’s

determination as to consent resulted in the admission of DNA evidence during the

punishment phase of appellant’s criminal trial that connected him to an extraneous

murder. This Court found the error harmful, reversed the trial court’s judgment as to

punishment only, and remanded the case to the trial court for a new punishment

hearing.

The State filed a petition for discretionary review. The court of criminal

appeals granted the State’s petition, vacated this Court’s judgment, and remanded

the case to this Court to determine whether appellant preserved error related to the

admission of the DNA evidence connecting him to the extraneous offense during the

punishment phase of his criminal trial. On reconsideration of appellant’s second

issue, we conclude that appellant waived error and, finding it unnecessary to

readdress appellant’s first issue, affirm the trial court’s judgment. See Calhoun v.

1 The Honorable Sarah Beth Landau and the Honorable Julie Countiss, former Justices of this Court, were members of the panel that originally decided this appeal. Their terms of office expired on December 31, 2024, and they did not participate in this decision on remand. 2 State, 951 S.W.2d 803, 806 (Tex. App.—Waco 1997, pet. ref’d) (noting that

appellate court has discretion, but may decline, to re-examine points of error

previously addressed); Austin v. State, No. 10-13-00119-CR, 2015 WL 5312092, at

*5 (Tex. App.—Waco Sept. 10, 2015, no pet.) (mem. op., not designated for

publication) (declining to re-examine points of error not challenged on remand); see

also Page v. State, 170 S.W.3d 829, 835 (Tex. App.—Corpus Christi–Edinburg

2005) (applying law-of-case doctrine and declining to re-examine, on remand, points

of error previously addressed), rev’d on other grounds, 213 S.W.3d 332 (Tex. Crim.

App. 2006).

Background

A. Appellant’s DNA Sample

The factual background is detailed in our prior opinion, and we repeat only

those facts that are relevant to this appeal on remand. Romero v. State, No. 01-22-

00639-CR, 2024 WL 3974425, at *1–5 (Tex. App.—Houston [1st Dist.] Aug. 29,

2024) (mem. op., not designated for publication), vacated, No. PD-1078-24, 2025

WL 925858 (Tex. Crim. App. Mar. 26, 2025) (not designated for publication).

After being arrested and given Miranda warnings,2 appellant confessed to

killing Maria Marquez. Following appellant’s confession, a Houston Police

Department (HPD) officer collected a buccal swab of appellant’s saliva.

2 Miranda v. Arizona, 384 U.S. 436 (1966).

3 Unrelated to Marquez’s death, the Pasadena Police Department (PPD) was

investigating the killing of Guillermo Gonzalez. PPD eventually learned of and

requested appellant’s DNA sample and compared the sample to the DNA that had

been recovered in their investigation of Gonzalez’s death. The Harris County

Institute of Forensic Science (HCIFS) prepared a comparison analysis of appellant’s

DNA from the saliva sample and the DNA profile collected from Gonazlez’s body

and the car in which Gonzalez was found. During the punishment phase of

appellant’s trial, an HCIFS case management supervisor testified that the

comparison analysis showed “very strong support” that appellant was a contributor

to the DNA obtained from the interior handle of the driver-side door, steering wheel,

and ignition of Gonzalez’s car; “moderate support” that appellant was a contributor

to the DNA obtained from the back pocket of Gonzalez’s pants and left hand; and

“very strong support” that appellant was a contributor to the DNA obtained from

Gonzalez’s right hand and his ankles.

During the State’s closing of the punishment phase, the prosecutor argued that

the evidence proved beyond a reasonable doubt that appellant had killed Gonzalez

because it showed that Gonzalez and appellant had been co-workers, appellant lived

in close proximity to the carwash where Gonzalez’s body was found, surveillance

footage showed a man walking from the carwash toward the apartment complex

where appellant lived, and appellant told his sister and brother-in-law that he had

4 stabbed somebody. The prosecutor then discussed the results of the DNA

comparison analysis, stating: “The DNA is incredibly probative in this case, and it

tells you who the killer is.”

B. Objections During Trial

During the guilt-innocence phase, the State offered into evidence a copy of a

consent form signed by appellant in which appellant purportedly consented to the

collection of his saliva. Defense counsel objected to the admission of the consent

form into evidence because it was in English—appellant speaks Spanish and HPD

officers interviewed him in Spanish—and it was not read to him or translated for

him in Spanish. The State responded that appellant consented orally to the buccal

swab and that the State was not relying solely on the written consent to prove the

voluntariness of the collection. The trial court overruled appellant’s objection and

admitted the written consent form into evidence.

Later that day, the State sought to admit appellant’s buccal swab into

evidence. Appellant’s counsel asked to approach the bench and, outside the presence

of the jury, stated that she was objecting on the grounds that appellant’s consent was

not voluntary. The trial court did not entertain further argument and stated, “I already

ruled it was admissible.” Appellant’s counsel then formally objected to the

admission of the buccal swab in the presence of the jury “[o]n the grounds I stated

earlier,” and the trial court overruled the objection.

5 During the punishment phase of appellant’s criminal trial, after the jury had

found appellant guilty of Marquez’s murder, the State sought to introduce swabs

used to collect any trace DNA evidence at the scene of Gonzalez’s death as well as

swabs used to collect genetic samples from known persons of interest. Appellant’s

counsel stated, “Subject to my previous objection, to State’s Exhibit 136 [the buccal

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Luis Moron Romero v. the State of Texas, (Tex. Ct. App. 2026).

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