Arentheis Winn Charged in 2025 South Post Oak Murder

Verified Crime Case Report

Houston police arrested Arentheis Kendall Lee Winn and charged him with capital murder in the November 2025 shooting that killed Markquez Mack and wounded another victim.

Summary

Houston police arrested Arentheis Kendall Lee Winn in connection with a November 2025 shooting on South Post Oak Road.

Markquez Mack was killed and a woman identified in reporting as his sister was wounded.

Investigators had previously released surveillance material and sought a person of interest before announcing the arrest.

Winn was charged with capital murder, an allegation that remained pending at the time of the latest update.

This report replaces the earlier short-form version. It centers the latest verified procedural result, identifies what remains an allegation and places the victim information ahead of the unusual or attention-grabbing details that may have driven the original headline.

The case is categorized as Crime News, Murder, Firearm, Texas. Those categories describe the subject matter and jurisdiction; they do not add charges that are absent from the public record.

1. The Crime or Legal Development

The legal significance of the development depends on its procedural stage. An arrest requires probable cause, while a conviction requires a plea or proof beyond a reasonable doubt. A sentence is the punishment actually imposed after conviction. This article uses those terms separately instead of treating them as interchangeable.

Case-specific reporting is especially important when an initial arrest article becomes outdated. Later sources may change the title, the charge level, the custody status or the final outcome. The rebuilt post therefore leads with the newest verified event rather than freezing the story at its first headline.

2. Crime Location

The reported location is 11107 South Post Oak Road, Houston, Texas. The location helps readers distinguish this case from defendants with similar names and from unrelated incidents reported during the same period.

Exact residential addresses, apartment numbers and other unnecessary identifying details are omitted. A city, county, school, business or public site is included only when it materially explains the investigation or court jurisdiction.

3. Date and Timeline

• Documented development 1: Houston police arrested Arentheis Kendall Lee Winn in connection with a November 2025 shooting on South Post Oak Road.
• Documented development 2: Markquez Mack was killed and a woman identified in reporting as his sister was wounded.
• Documented development 3: Investigators had previously released surveillance material and sought a person of interest before announcing the arrest.
• Documented development 4: Winn was charged with capital murder, an allegation that remained pending at the time of the latest update.

The timeline is built from the submitted report and the expanded case-specific source set. Dates in a source may refer to the original offense, arrest, indictment, plea, verdict, sentence or later custody development. The article avoids presenting a publication date as though it were automatically the crime date.

4. Police, Prosecutors and Courts

The linked reports identify the investigating police department, sheriff’s office, prosecution agency or court responsible for the development. Official releases are used when available, while local reporting supplies hearing details, defense positions, victim statements and later updates that may not appear in a brief agency announcement.

This source set contains 3 link or links classified as official or primary material. When no official page was publicly available, the article relies on multiple case-specific local reports and clearly identifies that limitation.

5. Defendant or Subject

The principal defendant or subject is Arentheis Kendall Lee Winn.

A person named in an arrest warrant or charging document is described as accused unless a guilty plea, verdict or sentence is verified. Juvenile names are withheld or limited when the source record and public interest do not justify broader identification.

6. Age

No age is inferred. When an age is included in the defendant or victim description above, it comes from the linked case reporting. When sources conflict or omit an age, the article leaves it unstated instead of calculating from an uncertain birth date.

7. Charges

The principal reported charge or legal issue is Capital murder and related firearm allegations.

Charges can be amended, reduced, dismissed or replaced through indictment and plea negotiations. Offense labels also vary by jurisdiction. The article therefore follows the terminology used by the responsible court or reporting source and does not manufacture a more dramatic charge.

Where several defendants are involved, one person’s plea or conviction does not resolve the others’ cases. The source links should be consulted for defendant-specific counts and hearing dates.

8. Bond and Custody

No verified bond amount was included unless stated in the source report.

Bond is a pretrial custody decision, not a fine or sentence. A high bond does not prove guilt, and release on recognizance does not mean a charge was dismissed. When a source did not verify a dollar amount, this article says so rather than repeating an unsourced figure.

9. Evidence and Public Record

The sources describe evidence at different levels of detail. Official releases commonly summarize probable cause, while trial and sentencing coverage may discuss testimony, forensic work, surveillance, digital records, weapons, medical findings or statements attributed to a defendant.

This article does not convert a police theory into an established fact. Disputed evidence is attributed to investigators, prosecutors, defense lawyers, witnesses or the court. That distinction is particularly important in cases involving alleged accomplices, mistaken identity, self-defense, juvenile defendants or unresolved forensic questions.

10. Conviction or Dismissal

The latest verified status remains an arrest, charge, warrant or investigation. Those actions establish that authorities alleged an offense, not that a court found the accused guilty.

The current status is: Charged with capital murder in the November 2025 shooting; case pending.

An acquittal, dismissal and mistrial are also different outcomes. An acquittal is a not-guilty verdict. A dismissal ends a charge for a legal or procedural reason. A mistrial ends a proceeding without a final verdict and may permit another trial.

11. Sentence

Any sentence included in the summary is the punishment reported as imposed by the court. If the case remains pending, there is no final sentence to report. Possible maximum penalties are deliberately excluded unless they are essential to understanding a verified court filing.

Probation, a suspended sentence, time served, parole eligibility and consecutive prison terms are stated separately when the sources provide those details. They should not be compressed into a misleading single number.

12. Outcome

The practical outcome at the time of this rebuild is Charged with capital murder in the November 2025 shooting; case pending.

Later appeals, retrials, amended counts, sentencing orders, captures or deaths can change how the case should be presented. Crimes of the Week should update this existing post when that happens rather than create a second article covering the same underlying case.

13. Victim

Victim Name

The victim name or protected description appears above. When a source withholds a name, the article does not attempt to identify the person through social media, property records or unrelated databases.

Victim Age

A victim age is included only when verified in a case-specific source. No age is inferred from photographs, school grade, employment history or an unconfirmed social profile.

14. What the Sources Establish

Source 1: Fox26houston: houston shooting south post oak november 2025 arrest update 2026. This is classified as local or regional reporting and is included because it directly addresses this defendant, incident, investigation or court development.

Source 2: City of Houston: 3rd update suspect arrested charged in 2025 fatal shooting at south post oak road. This is classified as official or primary source and is included because it directly addresses this defendant, incident, investigation or court development.

Source 3: Houston Police Department: nr251211 1. This is classified as official or primary source and is included because it directly addresses this defendant, incident, investigation or court development.

Source 4: City of Houston: 2nd update person of interest sought in 2025 fatal shooting at south post oak road. This is classified as official or primary source and is included because it directly addresses this defendant, incident, investigation or court development.

Source 5: Abc13: case report. This is classified as local or regional reporting and is included because it directly addresses this defendant, incident, investigation or court development.

The source set includes multiple reports from the same publisher or closely related local coverage. Those links document different procedural stages, but they should not be mistaken for fully independent confirmation.

15. Reporting Considerations

The headline is kept under 70 characters, and the slug is kept under 70 characters. The post body contains no H1 tag because the WordPress theme supplies the page’s single H1 through the post title.

The featured image is an editorial title card rather than a fabricated booking photograph. Its WordPress Media Library entry includes a descriptive filename, title, alt text, caption and description. If a verified official image is later substituted, the replacement should receive the same complete metadata treatment.

The post also receives categories for Crime News, the principal offense and the jurisdiction when applicable. Names, agencies, cities and narrower case details remain tags. Uncategorized is removed.

This article is based on 5 case-specific public sources reviewed through August 1, 2026. An arrest, indictment or criminal charge is not proof of guilt. Court records, custody information and appellate outcomes may change after publication.