By Shawn Henry 
Tesla is facing a lawsuit seeking more than $1 million after a longtime employee alleged she was assaulted inside the company’s Austin facility by the same man later identified as the suspect in a deadly mass shooting in downtown Austin. According to court filings, 65-year-old Tesla employee Lillian Mendoza Brady claims the incident occurred on December 4, 2025, while both she and the suspect, Ndiaga Diagne, were working at the facility. Authorities later identified Diagne as the man who opened fire in Austin’s Sixth Street entertainment district on March 1, killing three people and injuring nearly twenty others before police shot and killed him.
The lawsuit alleges that Brady was attacked during a prayer break inside the Tesla factory. According to the filing, employees were permitted to take prayer breaks in common areas within the facility. During one of those breaks, Brady claims Diagne grabbed her and violently threw her to the ground. The lawsuit argues that Tesla either knew or should have known about what it describes as Diagne’s volatile behavior and alleged tendency toward aggression. Brady reported the incident to both Tesla management and the Travis County Sheriff’s Office shortly after it occurred, according to the filing. However, she did not know the name of the coworker involved at the time and says she did not have access to security footage from inside the facility that could have identified him.
The situation took a dramatic turn months later when Diagne carried out the March 1 shooting in one of Austin’s busiest nightlife districts. Authorities reported that the suspect drove a black Cadillac SUV into the Sixth Street area before opening fire into a crowd gathered outside a bar. The attack left three people dead and nearly twenty others injured in a chaotic scene that triggered a massive police response in the downtown area. Law enforcement officers confronted the suspect shortly afterward and shot him, ending the incident. Investigators later confirmed the suspect died from his injuries.
According to the lawsuit, Brady only realized that the man she claims assaulted her was the same individual responsible for the mass shooting after his identity and photographs were widely distributed in national news coverage following the attack. The filing states that when she saw those reports, she recognized Diagne as the coworker involved in the December 2025 assault inside the Tesla facility. The lawsuit now claims Tesla failed to act adequately despite being notified about the earlier incident.
Brady’s legal complaint seeks more than $1 million in damages and accuses Tesla of negligence related to workplace safety. The lawsuit argues that the company had a responsibility to protect employees from violent behavior in the workplace. According to the filing, Tesla should have recognized warning signs tied to the suspect’s conduct and taken appropriate action following the reported assault months earlier.
Authorities reported that the March shooting sparked a wide-ranging investigation involving multiple law enforcement agencies. Federal authorities are also examining whether the attack may have involved broader motives beyond the immediate incident itself. That investigation remains ongoing, and officials have not released additional details about what may have led to the shooting in the entertainment district.
The lawsuit now places Tesla at the center of a legal dispute connected to both workplace safety claims and the events surrounding the Austin shooting. While the case focuses on the alleged assault that occurred months before the shooting, the legal action also ties the earlier workplace incident to the suspect’s later actions in downtown Austin.
The case adds to a growing list of legal challenges Tesla has faced this year involving both its factory operations and its vehicles. The company has recently been involved in multiple lawsuits related to workplace safety claims and product disputes. Among them is a $51 million lawsuit involving allegations that a factory robot knocked a worker unconscious during an incident on the job. Other legal actions include claims related to vehicle design and operational issues.
Tesla has also faced a lawsuit alleging that the doors on a Model S may fail to open in emergency situations. In a separate case, a Tesla Cybertruck owner filed a $1 million lawsuit tied to an alleged crash involving the vehicle’s Autopilot system. Additional workplace claims have surfaced as well, including a complaint from an employee who reported injuries after approximately 150 pounds of Cybertruck components allegedly fell on them while working.
The company has also faced allegations involving hiring practices, with claims that foreign visa workers were favored over American employees in certain circumstances. Those allegations are separate from the current lawsuit but contribute to a growing stack of legal disputes surrounding the automaker’s operations and workforce.
Tesla continues to expand production at its Austin Gigafactory, which plays a central role in the company’s vehicle manufacturing operations. The facility produces several key Tesla models and serves as one of the automaker’s largest production centers in North America.
Despite the series of legal disputes, Tesla leadership has continued outlining aggressive long-term goals for the company’s future growth and technology development. CEO Elon Musk has discussed ambitious plans involving advanced manufacturing, new vehicle platforms, and even the possibility of factories operating beyond Earth in the distant future.
For now, however, the company faces ongoing legal scrutiny tied to workplace incidents and factory operations. Brady’s lawsuit is the latest case to move through the courts as Tesla continues navigating multiple legal challenges connected to its workforce and manufacturing environment.
The negligence lawsuit filed by Brady remains active as it moves through the legal system. Tesla has not yet responded publicly to the specific allegations outlined in the complaint. Court proceedings will determine how the case proceeds as the investigation surrounding both the workplace incident and the Austin shooting continues.
Eve Nowell