
What started as a brazen mid-afternoon drive-by on Donner Avenue in San Francisco’s Bayview has now ended in a clean sweep of guilty pleas for four men tied to the shooting, which left one man wounded and a home peppered with bullets. Prosecutors say the case came together through a cross-bay investigation that leaned heavily on surveillance video and coordination between Oakland and San Francisco police.
Today, 32-year-old Shaquille Dumetz pleaded guilty to attempted murder and, as previously imposed in December, received a seven-year state prison sentence, according to the San Francisco Chronicle. His co-defendants, 31-year-old Cory Martin-Turner, 33-year-old Phillip Stewart, and 28-year-old Jahari Oliver, each admitted to assault with a semi-automatic gun. Martin-Turner was sentenced in December to six years in state prison. Stewart and Oliver, who prosecutors say acknowledged being armed during the attack, are expected to receive 10-year prison terms at a sentencing hearing set for Wednesday.
Investigators say the case cracked open when surveillance footage caught the men leaving a residence in East Oakland and piling into two vehicles. About an hour later, an Infiniti G37 pulled up outside a Donner Avenue home, where a gunman opened fire and hit a man in the thigh, according to San Francisco Public Safety News. Video shown in court reportedly depicted several occupants inside the Infiniti holding guns, including a front-seat passenger with a rifle. Police later collected 12 shell casings at the scene, and residents reported that rounds punched into a door, a wall, and a window frame.
“These convictions and sentences hold these men accountable for a brazen, mid-afternoon drive-by shooting,” San Francisco District Attorney Brooke Jenkins told the San Francisco Chronicle. San Francisco Police Chief Derek Lew praised the detectives who worked the case and highlighted cooperation with Oakland police, the FBI, and the Bureau of Alcohol, Tobacco, Firearms and Explosives. Prosecutors say arrest warrants were obtained following the investigation, and the four men were taken into custody in February 2024.
Court testimony and police reports describe a February 2024 raid at a Bayview home where officers seized multiple firearms and magazines. A Glock recovered during a separate stop was later matched to the shell casings from Donner Avenue, San Francisco Public Safety News reports. Authorities say the defendants had ties to three different street gangs, and that prosecutors leaned on cellphone data and surveillance images to connect the vehicles and their occupants to the drive-by. Defense attorneys challenged the strength of the evidence and pushed for lower bail, but judges kept all four men locked up as the case moved toward resolution.
Legal consequences and next steps
With the guilty pleas on the books, the core charges are now resolved. Dumetz stands convicted of attempted murder, while Martin-Turner, Stewart, and Oliver are convicted of assault with a semi-automatic firearm. All face state-prison time, and the remaining sentencing hearings for Stewart and Oliver will determine whether they receive the 10-year terms prosecutors are seeking. Victim-impact statements and formal sentencing filings are expected to follow. Defense lawyers could still pursue mitigation arguments or post-plea motions, but prosecutors maintain the outcomes reflect accountability for a violent attack carried out in public view.
For many Bayview residents who heard the gunfire that afternoon, the pleas help close a disturbing chapter, though they also highlight ongoing unease over guns and gang activity along the corridor between the East Bay and San Francisco. Police brass say the case is a textbook example of what coordinated surveillance work and forensic follow-up can do in a shooting investigation. Community advocates, meanwhile, point out that long-term safety will require more than arrests and prison terms. Sentencing for Stewart and Oliver is scheduled for Wednesday.









