# Fatal arson investigation in Richmond, California

> Live situation record from CLSTR: https://clstr.news/situations/fatal-arson-investigation-in-richmond-california
> Updated: 2026-08-24T00:33:38.000Z. Sources: 11. Developments: 3.

Authorities in Richmond, California, arrested 32-year-old Sergio Rivera-Vega in connection with a fatal house fire on the 200 block of 15th Street. Investigators allege Rivera-Vega intentionally set the blaze at the residence where he lived with several relatives.

The fire resulted in the deaths of four family members. The victims include Rivera-Vega’s 47-year-old father, Jose Rivera, who died at the scene, and his 33-year-old sister, Maria, who died from burn injuries. Her two children, a 5-year-old nephew and a 2-year-old niece, also succumbed to their injuries.

Richmond Police Chief Timothy Simmons stated that detectives apprehended Rivera-Vega near the scene. The investigation noted suspicious circumstances, as a second fire broke out just two houses away while emergency responders were still attending to the initial blaze. 

Rivera-Vega faces charges including murder and arson; if convicted, he faces life without parole. His arraignment has been delayed until September 8 to allow public defenders time to review the case. A GoFundMe campaign has been launched by the family to assist with funeral and burial expenses.

## Timeline

### 2026-08-24: Richmond man charged in fatal family house fire

A Richmond man, Sergio Rivera-Vega, faces charges for allegedly setting a fire that killed four family members, including his father and two young children. His arraignment is set for September 8.

2 sources. https://clstr.news/cluster/richmond-man-charged-in-fatal-family-house-fire

### 2026-08-21: Richmond arson suspect arrested after fatal house fire kills three relatives

Sergio Rivera-Vega, 32, was arrested for allegedly setting an intentional house fire in Richmond, California, that killed his father, his 5-year-old nephew, and his 2-year-old niece.

7 sources. https://clstr.news/cluster/richmond-arson-suspect-arrested-after-fatal-house-fire-kills-three-relatives

### 2026-08-19: Richmond man arrested in fatal suspicious house fire

Sergio Rivera Vega has been arrested for murder and arson after a suspicious Richmond, California, house fire killed a man and his 5-year-old grandson, leaving two others in critical condition.

2 sources. https://clstr.news/cluster/richmond-man-arrested-in-fatal-suspicious-house-fire

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Cite as: Fatal arson investigation in Richmond, California. CLSTR, https://clstr.news/situations/fatal-arson-investigation-in-richmond-california