Jury Convicted Gaslamp District Shooter

Brian Tyner was found guilty of first-degree murder following a fatal shooting in a downtown building.

Updated on Sept. 23, 2026 in Violence

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A jury convicted 38-year-old Brian Tyner of first-degree murder for the fatal shooting of 46-year-old Antwan Bluthenthal in a San Diego office building. AI Illustration. Upload story photo >

A jury convicted 38-year-old Brian Tyner of first-degree murder for the death of 46-year-old Antwan Bluthenthal. The incident occurred on the third floor of 701 Fifth Avenue in the Gaslamp District.

Why it matters

The conviction resolves the legal proceedings regarding a fatal altercation that ended in the death of Antwan Bluthenthal at the scene. Brian Tyner had claimed the shooting was an act of self-defense after a physical confrontation.

A jury convicted Brian Tyner on September 23, 2026, on charges including first-degree murder, carrying a concealed firearm, and brandishing a firearm. Sentencing for the 38-year-old is currently scheduled for November 2026.

The players

Brian Tyner

He is the 38-year-old man convicted of first-degree murder and firearm-related offenses.

Antwan Bluthenthal

The 46-year-old victim died at the scene following the shooting in the Gaslamp District.

The details

Evidence presented showed that Tyner retrieved a firearm from a cross-body satchel and followed the victim after knocking away his arm during a physical interaction in a hallway. Tyner had previously told investigators he acted in self-defense, a claim rejected by the jury.

Timeline

  1. August 3, 2025: Brian Tyner shot Antwan Bluthenthal on the third floor of 701 Fifth Avenue.

  2. September 23, 2026: A jury returned a guilty verdict for first-degree murder and firearm charges.

  3. November 2026: Brian Tyner is scheduled to appear for his sentencing hearing.

Legal Context

The jury verdict follows the legal requirements established by the state penal code for defining first-degree murder. This case reflects the ongoing judicial process for handling incidents of fatal violence within San Diego's dense urban districts.

The verdict provides closure to an incident that occurred in a high-traffic area of the Gaslamp District. Residents and local business owners can note that the legal process has reached the conviction stage for this specific 2025 shooting.

The takeaway

This case underscores the outcome of judicial proceedings when self-defense claims are contested by evidence of pursuit and escalation. The upcoming sentencing phase will formally conclude the legal response to the August 2025 incident.

What happens next

Brian Tyner is scheduled for sentencing in November 2026.

Further reading

For more information on legal proceedings in the area, visit the Violence section.

Source note: This article includes information reported by San Diego Union-Tribune.