Dixon man's trial setting delayed again

Brian James Sweeney faces first-degree murder charges in 2025 stabbing death

Apr. 3, 2026 at 9:48pm

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An extreme close-up of a single knife blade against a pitch-black background, lit by a harsh, direct camera flash, conceptually representing the physical evidence at the center of a violent crime investigation.A close examination of the physical evidence at the heart of a deadly bar fight exposes the stark realities of violent crime.Vacaville Today

The trial setting for a 44-year-old Dixon man charged with first-degree murder in the 2025 stabbing death of a 21-year-old Vacaville man has been delayed until later this month in Solano County Superior Court. Brian James Sweeney is accused of fatally stabbing Kane Nishimoto during a fight at a downtown Dixon bar.

Why it matters

This case highlights ongoing challenges in the criminal justice system, including delays in trial settings and disputes over claims of self-defense, as prosecutors seek to hold a previously convicted felon accountable for a violent crime that took a young man's life.

The details

Sweeney, who is represented by Vallejo-based attorney Thomas Maas, was charged with first-degree murder with personal use of a knife in Nishimoto's death. Prosecutors allege the stabbing occurred during a fight at a downtown Dixon bar around 2 a.m. on August 16, 2025. Sweeney left the scene but later turned himself in to Dixon police, accompanied by his attorney. Maas has said Sweeney's own statements to police after turning himself in are proof he was acting in self-defense, but Deputy District Attorney Courtney Anderson said specific evidence refutes that claim.

  • Sweeney is scheduled to return to court on April 24, 2026 at 8:30 a.m. for the setting of a trial date.
  • The fatal stabbing occurred around 2 a.m. on August 16, 2025 at a downtown Dixon bar.

The players

Brian James Sweeney

A 44-year-old Dixon man charged with first-degree murder in the 2025 stabbing death of a 21-year-old Vacaville man.

Kane Nishimoto

A 21-year-old Vacaville man who was fatally stabbed during a fight at a downtown Dixon bar in August 2025.

Thomas Maas

The Vallejo-based attorney representing Brian James Sweeney.

Courtney Anderson

The deputy district attorney leading the prosecution against Brian James Sweeney.

Janice M. Williams

The judge presiding over the case in Solano County Superior Court.

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What they’re saying

“Sweeney's own statements to police after turning himself in are proof of his belief that he was acting in self-defense.”

— Thomas Maas, Attorney

“Specific evidence refutes any claim of self-defense.”

— Courtney Anderson, Deputy District Attorney

What’s next

The judge in the case will decide on April 24 whether to set a trial date for Brian James Sweeney.

The takeaway

This case highlights the complexities of the criminal justice system, including disputes over self-defense claims and the challenges of securing justice for victims of violent crimes, especially when the accused has a prior criminal record.