A San Francisco judge on Jan. 30 kept four felony counts of gross vehicular manslaughter against an 80-year-old driver whose SUV slammed into a West Portal bus shelter on March 16, 2024, killing a family of four, court officials said. The decision leaves the case in felony proceedings while civil lawsuits by relatives move forward separately.
The ruling follows months of hearings and filings in a crash that jolted a neighborhood where Muni trains emerge beside the West Portal Branch Library and families gather to change lines or head toward the zoo. Prosecutors allege the driver’s 2014 Mercedes GLK accelerated to more than 70 mph and did not brake before hitting the shelter, striking a couple and their two children who were waiting to travel to the San Francisco Zoo on their wedding anniversary. The driver has pleaded not guilty. Defense attorneys argue the crash was an accident linked to a sudden vehicle surge; investigators reported finding no evidence of mechanical failure. The judge’s decision keeps the higher penalties in play if a jury convicts.
Authorities identified the victims as 40-year-old software engineer Diego Cardoso de Oliveira and his 1-year-old son, Joaquim, who died at the scene, and 38-year-old Matilde Moncada Ramos Pinto and her 3-month-old son, Cauê, who died later at a hospital. The violent impact shattered glass and threw debris across Ulloa Street near the library as riders and nearby shopkeepers scattered. Police and firefighters converged within minutes to triage the injured and secure the route. Prosecutors said surveillance and traffic-camera video captured sustained speed and a lack of braking in the blocks before the crash. They argued the conduct met the legal definition of gross negligence. The defense sought misdemeanor treatment and pointed to the driver’s age and lack of criminal history. Judge Bruce Chan declined to reduce the counts after reviewing the evidence.
Investigators collected video from storefronts, Muni vehicles and city intersection cameras and downloaded data from the Mercedes’ control modules, according to court summaries. The medical examiner ruled that the parents died of blunt-force trauma consistent with a high-speed collision; both children suffered critical injuries that proved fatal despite emergency care. Prosecutors said no evidence supported claims of a stuck accelerator or other malfunction. The driver’s legal team has maintained she is devastated and insists she did not act with criminal negligence. The court’s order means felony arraignments and readiness conferences will continue in Superior Court, with pretrial motions expected to focus on admissibility of vehicle data, video footage and expert testimony on driver inputs and crash dynamics.
Relatives of the victims have filed a wrongful death lawsuit and a separate civil action accusing the driver of moving real estate into Nevada-based limited liability companies after the crash to shield assets from potential judgments. The civil filings ask a judge to void the transfers and bar any further changes. Defense attorneys have said the property moves were made on professional advice unrelated to the litigation. In criminal court, prosecutors have emphasized they are focused on conduct behind the wheel on the day of the crash. The cases are proceeding on separate tracks: criminal findings could affect sentencing exposure, while civil rulings will determine whether assets are reachable if the family prevails.
West Portal, a compact commercial district on the city’s west side, funnels traffic past train portals, a library, schools and a cluster of bus stops. On the Saturday of the crash, witnesses reported an SUV barreling down Ulloa Street before mounting the curb and tearing through the shelter glass. “Everybody started running,” a commuter said that afternoon, recalling a sudden roar and flying debris. In the weeks after, city crews reinforced barriers near the transit island and neighbors held vigils that drew residents from across San Francisco. Flowers and notes bearing the family’s names covered the rebuilt frame for months, shopkeepers said, and weekend foot traffic remained subdued as the intersection became a place of remembrance.
Court records and statements from the District Attorney’s Office describe the evidence set: collision reconstruction, vehicle event data, camera timelines and medical examiner findings. Prosecutors say the outputs show throttle and speed without corresponding braking moments before impact. The defense has not stipulated to those interpretations and may seek independent testing of the SUV and its modules if the court permits. The judge’s ruling did not settle those disputes; instead, it found that the prosecution’s allegations, taken in the light required at this stage, support felony exposure. A jury would ultimately weigh credibility of experts and reconcile technical readings with on-the-ground witness accounts.
Identities and backgrounds of the victims have been central to public attention. Oliveira, who worked in software, and Ramos Pinto, connected to academic work in the region, had relocated from Brazil and Portugal. Their children, Joaquim and Cauê, were celebrated in community memorials that followed. Officials say the family was marking a wedding anniversary and planned a zoo visit when the crash occurred. The human toll has surfaced in court statements from relatives and in interviews outside hearings. “It wasn’t just my sister and her family that died. Part of us all died,” said Luis Ramos Pinto in a recent interview as the reduction request moved toward a hearing.
City officials say the investigation began as a broad canvas of nearby blocks and quickly drew help from municipal departments. Transit agency staff pulled onboard footage; public works staff documented the shelter structure; and police closed Ulloa from the portal to adjacent intersections while collision investigators mapped the scene. Emergency crews routed buses and trains around the perimeter as a temporary memorial grew. The compilation of footage, forensic downloads and witness statements formed the backbone of the charging decision. Prosecutors later amended counts to reflect the fourth death after the youngest child succumbed to injuries in the days that followed, aligning criminal exposure with the number of lives lost.
The legal path ahead includes additional pretrial motions on expert scope, jury instructions and evidentiary limits. Defense attorneys could seek a change of venue, arguing local coverage makes a fair jury harder to seat. The court may also entertain motions on whether certain civil allegations about post-crash asset transfers are admissible in the criminal matter or remain confined to civil court. Scheduling conferences will set the cadence for discovery, including access to original video files, calibration records for cameras, and full logs of how crash data were pulled from the vehicle. A trial date has not been set.
In the parallel civil cases, depositions are expected to cover the driver’s personal finances, any trust instruments and the chain of title for properties at issue. Plaintiffs are seeking injunctions to prevent additional transfers. If the civil court voids the moves, assets could be restored to the driver’s name or trust pending the outcome of the wrongful death suit. Lawyers on both sides say discovery could stretch well into this year, with hearings spaced alongside the criminal calendar. The cases are independent, but outcomes in one could influence settlement discussions in the other.
Neighborhood businesses say reminders of the crash remain visible despite repairs. The bus shelter has been rebuilt, but bollards and fresh paint mark changes made after city reviews. Some Saturdays feel quieter, shopkeepers said, with more people pausing near the library steps where the memorial stood. Transit riders described glancing up more often as vehicles approach the island. A bookseller across the street said customers still ask about the family by name and point to the corner where the SUV came to rest. “People stop and read the notes that were left,” the bookseller said, recalling months of small ceremonies and offerings that continued even as traffic returned.
As of Feb. 2, the driver remains charged with four counts of gross vehicular manslaughter and has pleaded not guilty. The next milestone is a Superior Court scheduling conference to set further motion dates and a potential trial window. The civil suit alleging fraudulent transfers will proceed on a separate track. Both matters are ongoing, and authorities said additional updates will follow as court calendars are finalized.
Author note: Last updated February 2, 2026.