Sergio Ivan Rivera-Vega made an appearance in Superior Court on Tue., Sept. 8, 2026 on four counts of murder-arson.
Author Archives: Joel Umanzor
Joel Umanzor Richmondside's city reporter.
What I cover: I report on what happens in local government, including attending City Council meetings, analyzing the issues that are debated, shedding light on the elected officials who represent Richmond residents, and examining how legislation that is passed will impact Richmonders.
My background: I joined Richmondside in May 2024 as a reporter covering city government and public safety. Before that I was a breaking-news and general-assignment reporter for The San Francisco Standard, The Houston Chronicle and The San Francisco Chronicle. I grew up in Richmond and live locally.
Contact: joel@richmondside.org
Richmond mayoral election: Finalists discuss top issues
From tensions with the police department to rebranding the city’s image, Ahmad Anderson and Claudia Jimenez discuss their platforms.
Update: Suspect in police shooting identified
Jasmine Robinson, 39, is accused of shooting numerous rounds that struck neighboring homes and vehicles, including a patrol car, police said.
Suspect arrested in hit-and-run that killed 81-year-old Richmond man
Don Mack, 66, of Richmond was arrested on Sunday in connection with the death of Rafael Delago, who was in a crosswalk when he was hit.
Richmond man, 81, killed in hit-and-run at 23rd Street
Rafael Delgado was struck by a vehicle that left the scene, family members said, after he left the Bahia de Jiquilisco restaurant on Aug. 23.
Richmond arson suspect delays entering plea in killing of 4 family members
Sergio Ivan Rivera-Vega will be formally arraigned on Tue., Sept. 8 on four counts of murder-arson.
Update: Richmond fire claims fourth victim
The house fire police say was arson resulted in the deaths of a Richmond mother, her two young children and her father. Her brother has been charged with murder.
Richmond man arrested at scene of fatal house fire was related to the four victims
The suspect’s father and his nephew died, making them the city’s sixth and seventh homicides of 2026. His sister and her daughter are in critical condition.
FPPC fines Richmond council member $400 for improper 2023 recusal
The commission ruled Doria Robinson failed to properly disclose a conflict of interest though it found “insufficient evidence” she influenced the city’s Urban Tilth contract.
What we know about Richmond’s PCE cases
For decades, the carcinogen was widely used in dry-cleaning and consumer products. Now the state is working to clean up at least 10 local sites where it’s been detected.
Fatal stabbing victim identified; suspect arrested
Killing of a Martinez man, 59, at a Belding Woods transitional home is the city’s fifth homicide of 2026, police said.
Update: Richmond discusses city manager hiring
The council interrupted its mid-summer break to discuss hiring Shasa Curl’s successor and extended the contract with a recruiter.
Couple is podcasting from a boat in San Pablo Harbor to preserve bay history
Mike Herz, founder of SF Baykeeper, and his wife, Kate Josephs, are sharing stories about the bay from their home upon the waves.
Richmond City Council keeps running out of time to get things done
Discussions about police military equipment and a proposed ballot measure to create an ethics watchdog commission are among a series of postponed council topics.
Outgoing county assessor calls FBI raids ‘substantial but not substantive,’ saying they’ll meet July 1 deadline
Outgoing Assessor Gus Kramer, whose office and home were recently raided by the FBI, says he expects the county will meet the deadline for its multi-billion-dollar annual property assessment.
Richmond considers ballot measure to pay for fire station fixes and paramedics
Richmond is the only city in the county without paramedic-certified fire service. Polling says voters are open to paying for it — but aren’t enthusiastic.
Council warned: Stop assigning more work to understaffed city departments
With 18% of Richmond’s city positions left vacant to balance the budget, the city manager told the city council to stop creating new roles and adding new priorities.
Richmond homicide: Man arrested on charge of killing brother
Victor Blacknell, a relative of a well-known convicted gang member, was arrested shortly after the Tuesday night assault that left Jerome Timmons dead.
Richmond nears budget deadline with numerous questions unanswered
City staffers asked the city council to weigh in on budget priorities. Instead the mayor ended the meeting abruptly without a vote.
FBI serves warrants at Contra Costa County assessor’s office and two homes
The raids were conducted as part of an investigation involving former assessor Gus Kramer and his recently elected successor, Vince Robb.

