San Francisco Police investigate a crash scene at Eighth and Folsom streets on Tuesday, Sept. 3, 2019. (Kevin N. Hume/S.F. Examiner)

Fourth suspect surrenders in fatal shooting of SF mother

A fourth suspect in the killing of a 33-year-old woman who was found suffering from gunshot wounds in a vehicle last December has surrendered to authorities, police said Thursday.

Tyjone Flournoy, 23, turned himself in Sunday in connection with the fatal shooting of San Francisco resident Ronisha Cook.

County Jail records show he was booked on suspicion of murder, attempted murder, participation in a criminal street gang and conspiracy charges, but he appears to have been released as of Thursday.

A District Attorney’s Office spokesperson confirmed he has not been charged pending further investigation.

Cook was in a vehicle when a shooter opened fire from another car near Leavenworth and Eddy streets in the Tenderloin shortly before midnight on Dec. 19, 2019, authorities said.

Cook ended up near Eighth and Harrison streets in South of Market, where police found her injured in a bullet-damaged car. She was taken to a hospital and succumbed to her injuries.

Flourney is the fourth suspect taken into custody in connection with her killing.

In late October, police arrested Derrick Sessions, 28, Robert Huntley, 31, and Gary Owens, 39, on suspicion of various charges including murder and participation in a criminal street gang.

While Sessions was released without being charged, Huntley and Owens are both facing murder and other charges.

Huntley is alleged to have been driving the vehicle when Owens allegedly opened fire, prosecutors said.

Huntley and Owens have pleaded not guilty and are being held without bail.

Both men are due back in court Friday.

At the time of the shooting, Cook was one of three Black mothers killed in less than a month. Her shooting prompted outrage from local officials and advocates who called for an end to the violence.

Bay Area NewsCrimesan francisco news

If you find our journalism valuable and relevant, please consider joining our Examiner membership program.
Find out more at

Just Posted

Nicole Canedo looks at her City-issued Medical Reimbursement Account page on her computer outside her Berkeley apartment on Tuesday, Nov. 24, 2020. Canedo has worked numerous retail jobs in The City and the MRA has helped her with health costs. (Kevin N. Hume/S.F. Examiner)
Millions left sitting in medical reimbursement accounts by city workers

Health officials looking at how to improve access, outreach as untapped funds reach $409M

Dr. Grant Colfax, director of the San Francisco Department of Public Health. (Kevin N. Hume/S.F. Examiner)
SF moves into purple tier, triggering curfew and business shutdowns

San Francisco moved into the state’s purple COVID-19 tier Saturday, requiring The… Continue reading

Indecline, an art activist collective in San Francisco, transformed a billboard into an editorial with a message blasting immigration policies of Donald Trump’s administration. (Screenshot, Indecline website)
Has immigration fallen off the administration’s radar? Not a chance

Enforced as executive orders, Trump’s hardline policies are proceeding, against will of the people

University of San Francisco head coach Todd Golden coaches his team on defense during a 2019 gameat War Memorial Gymnasium on the campus of the University of San Francisco. (Ryan Gorcey / S.F. Examiner)
Stunner in Bubbleville: USF upsets fourth-ranked Virginia

Less than 48 hours removed from a loss to a feeble UMass… Continue reading

A dinner at three Michelin Stars restaurant The French Laundry in Yountville, Napa Valley has highlighted Gov. Gavin Newsom’s relationship with a well-known lobbyist. (Leonard Zhukovsky/Shutterstock)
The lobbyist who led Gavin Newsom to the French Laundry has a history of controversy

Lara Korte and Sophia Bollag The Sacramento Bee When photos circulated earlier… Continue reading

Most Read