The Austin mass shooting that killed three people and wounded more than a dozen on March 1 has now drawn Tesla into a civil lawsuit — one that alleges the company ignored warning signs about the gunman’s behavior long before he opened fire.

Key facts from the CBS News report:

The attacker: Ndiaga Diagne, the gunman who killed 3 and wounded 12+ at an Austin bar on March 1, allegedly worked at Tesla’s Austin facility and physically attacked a fellow employee there in December 2024.
The victim: Lilian Brady, 65, says Diagne grabbed her and threw her to the ground while he was praying on a walking path at the Tesla facility. She didn’t know his name until she recognized his face in news coverage of the shooting.
The lawsuit: Filed against Tesla, it alleges the company knew about Diagne’s “aggressive tendencies” and failed to keep him out of common areas. It seeks more than $1 million in damages.
The evidence gap: Brady reported the December 2024 assault to both Tesla and the Travis County Sheriff’s Office. Neither gave her the attacker’s name or access to surveillance video before the shooting. The sheriff’s case is now closed because Diagne is deceased.

Tesla’s Austin Facility at the Center of a Negligence Claim

A new lawsuit alleges that Tesla had direct knowledge of aggressive behavior by Ndiaga Diagne at its Austin facility and failed to act on it, allowing an employee with a documented history of physical violence to move freely through shared spaces where other workers could be harmed. The lawsuit names Tesla as a defendant in the December 2024 assault on Brady, arguing the company’s inaction created a foreseeable risk.

Brady’s attorney, Robert Hilliard, told CBS News he believes law enforcement had already reviewed surveillance footage of Diagne at the Tesla site before the March 1 shooting. Austin Police Chief Lisa Davis, however, said the department had no prior contact with Diagne. The FBI spoke with Brady in early March as part of its investigation into the shooting.

Tesla’s Austin workforce stood at 20,000 in 2023, with plans to expand significantly from there, with the company operating one of its largest global facilities at Giga Texas. The site remains central to Tesla’s production plans, including Cybercab manufacturing now ramping there.

What Brady Reported — and What Tesla Did Not Share

According to the lawsuit, Lilian Brady was walking on a path at the Tesla facility in December 2024 when Diagne, who was praying in the area, grabbed her and threw her to the ground. She reported the assault to Tesla and to the Travis County Sheriff’s Office. Neither gave her Diagne’s name. Tesla also declined to provide her with video footage of the incident.

She only connected the attacker to the March 1 shooting when she recognized Diagne’s face in news coverage. At that point, the case had an answer — but not a resolution. The Travis County Sheriff confirmed an investigation was opened after Brady’s December 2024 report, but told CBS News the case was closed after the shooting because the suspect is now deceased.

The lawsuit’s core argument is straightforward: Tesla knew who this person was, knew about the assault, had video evidence, and chose not to share it. Whether a timely internal response could have changed anything before March 1 is exactly what this case will examine.

This isn’t the first time Tesla’s internal conduct around employee incidents has drawn legal scrutiny. Tesla Energy recently faced a lawsuit from workers who say they were fired after raising safety alarms at a California warehouse. And leaked internal documents in 2025 exposed safety lapses and harsh working conditions across multiple Gigafactories.

Details From the March 1 Shooting

Diagne carried out the attack at an Austin bar on the night of March 1, killing three people and wounding more than a dozen. He was armed with a handgun and an AR-style rifle. Investigators found a Quran in his SUV. He wore a shirt bearing insignia associated with the Iranian regime during the attack. The FBI is involved in the broader investigation.

None of those details are part of Brady’s civil lawsuit against Tesla. Her case is narrower: she says she was physically assaulted on company property by a coworker, that Tesla withheld information that could have identified him, and that the company’s failure to act on what it knew amounted to negligence.

Tesla has not publicly commented on the lawsuit. The company has faced a pattern of legal challenges tied to its employment practices. A major race discrimination class action at its Fremont facility involving more than 6,000 workers was decertified in late 2025, a legal win for Tesla — but the volume of employment-related litigation at the company continues to grow.

EVXL’s Take

A corporate liability story that happens to involve one of the world’s most prominent EV manufacturers and its largest U.S. factory.

What stands out isn’t the dollar figure — $1 million in damages is relatively modest for a case of this profile — it’s the surveillance video question. If Tesla had footage of Diagne assaulting Brady in December 2024, and that footage existed while law enforcement was potentially reviewing the site before March 1, that’s the thread a jury will want pulled. Brady’s attorney is already pointing at it directly.

Tesla’s record on internal incident response has come up repeatedly. The 2025 internal document leaks showed a company dealing with safety lapses it hadn’t disclosed publicly. That context matters here, even if the specifics differ.

What to watch: The FBI’s involvement suggests the broader shooting investigation isn’t closed. Once Brady’s attorneys get access to Tesla’s internal incident records through discovery, this case will likely surface far more detail about what Tesla knew and when. Expect the lawsuit to expand in scope by Q3 2026, and expect Tesla to settle quietly rather than risk a public trial in Austin.

Source: CBS News

Editorial Note: AI tools were used to assist with research and archive retrieval for this article. All reporting, analysis, and editorial perspectives are by Haye Kesteloo.