Two teen girls, 16 and 17 years old, died at the scene of a crash on Golf Course Drive at Roberts Lake Road.
The 49-year-old was not wearing a seat belt and was thrown from his car, the California Highway Patrol said.
A Santa Rosa man and a Pittsburg man were in a Cadillac CTS and died at the scene of the collision near Trombetta Street.
"Items at the scene led investigators to believe it was a fentanyl overdose," a Santa Rosa police sergeant said.
The Sonoma County Sheriff-Coroner's Office identified a woman who died when her car became pinned under a big rig at a Santa Rosa off-ramp.
The Sonoma County man was driving a red Chevy Camaro when he collided with a black Infiniti at a Napa intersection, police said.
A man who died in a solo-vehicle crash involving a 2001 BMW was a Cotati resident, according to the Sonoma County Sheriff-Coroner's Office.
The 38-year-old was outside a crosswalk when she was struck by a Nissan Frontier driven by a Glen Ellen man Sept. 23, according to the CHP.
The woman and her two small dogs died at the scene, according to the Rohnert Park Department of Public Safety.
The driver, 16, is accused of vehicular manslaughter in the Santa Rosa-area crash that left another 16-year-old with major injuries.
The Petaluma man was fatally struck the day after a woman was hit and killed by a SMART train at the same intersection.
"Rest easy, Brayan. We love and miss you," said fellow members of the Latinx Student Congress and MEChA at Sonoma State University.
The woman was fatally struck Thursday night on Petaluma Hill Road.
Paula Zamora was fatally shot by her husband in a murder-suicide Monday, police said. A donation page has been set up for her children.
The deadly blaze in a home west of Santa Rosa is believed to have been electrical in nature, a fire official said.
BREAKING: "Her huge heart and sweet soul will live on with all of us forever," according to a page set up in memory of the victim.
The girl was just 17 and the boy with her, who was also killed, was 19.
The Rohnert Park Harley rider was killed Saturday in a crash in Santa Rosa. Witnesses say he was travelling at a high rate of speed.
Hashtag #RobinWilliams was trending on Twitter as fans and Hollywood miss the beloved actor and comedian.
The actor was found dead in his Tiburon area home on Monday.
The man who started Relay for Life.
Assemblywoman Nancy Skinner says Mandela's example will live on forever.
Dennett served Rohnert Park from 1969 to 1993. He died Wednesday.
Twice named Rohnert Park Woman of the Year and honored as Grand Marshal of the Founder’s Day Parade, Reba Roberts was known to nearly everyone in town.
Students, teachers and parents called Heidi Kreger a selfless teacher with a big heart, who had an amazing ability to help kids.
A remembrance ceremony brought together community to share their memories of Cedeno, who they called selfless, and a great dad.