Tumbler Ridge Mass Shooting OpenAI Lawsuits Explained

OpenAI and CEO Sam Altman are facing dozens of lawsuits over the February 10, 2026 mass shooting in Tumbler Ridge, British Columbia, after the company acknowledged that it had detected concerning violent activity on the shooter’s ChatGPT account months before the attack but did not notify law enforcement. Jesse Van Rootselaar killed eight people, including five children and an educator at Tumbler Ridge Secondary School, wounded more than two dozen others and then died by suicide. OpenAI says it banned one of Van Rootselaar’s accounts in June 2025 after detecting activity that violated its policies but concluded at the time that the activity did not meet its threshold for a police referral. Families, survivors and witnesses allege that OpenAI safety personnel actually considered the threat serious enough to recommend notifying authorities and that company leadership failed to act. OpenAI disputes significant allegations in the lawsuits, while Altman has publicly apologized for the company’s failure to alert police.

The Tumbler Ridge Mass Shooting

The attack occurred in Tumbler Ridge, British Columbia, on February 10, 2026. Authorities identified the shooter as 18-year-old Jesse Van Rootselaar. Before attacking Tumbler Ridge Secondary School, Van Rootselaar killed 39-year-old Jennifer Jacobs and 11-year-old Emmett Jacobs at the family home. [AP]

Van Rootselaar then opened fire at Tumbler Ridge Secondary School. Five children and an educator were killed at the school. Van Rootselaar subsequently died from a self-inflicted gunshot wound. [AP] [British Columbia]

Eight victims were killed and more than two dozen people were injured. The British Columbia government has said the attack killed eight innocent people and wounded 27 others. Including the shooter, nine people died in the events at the residence and school. [British Columbia] [British Columbia]

OpenAI Had Flagged The Shooter’s ChatGPT Account

OpenAI detected troubling activity connected to Van Rootselaar approximately eight months before the attack. The company has acknowledged that its automated systems identified the account in June 2025 for activity violating its policies concerning the furtherance of violent activity. [OpenAI]

The account underwent human review. OpenAI said the automated detection was followed by an examination to determine both whether its usage policies had been violated and whether the activity should be referred to law enforcement. [OpenAI]

OpenAI banned the account in June 2025. The company determined that Van Rootselaar had violated its usage policies and shut down the account. [OpenAI]

OpenAI did not notify Canadian police. The company says that based on the material available to reviewers at the time, it did not identify sufficiently credible and imminent planning to meet its threshold for referring the account to law enforcement. [OpenAI]

Lawsuits Say OpenAI’s Safety Team Wanted Police Contacted

The victims’ lawsuits allege that OpenAI safety personnel believed Van Rootselaar posed a real-world danger. According to complaints filed in federal court, members of OpenAI’s safety team determined that the account involved violent activity and urged company leadership to notify law enforcement. [Court Records]

The lawsuits allege company leaders overruled the safety specialists. Plaintiffs claim senior officials decided the threat did not satisfy OpenAI’s standard for a “credible and imminent” risk despite the recommendation of personnel trained in threat assessment. [Court Records]

The lawsuits allege Van Rootselaar communicated a serious threat of physical violence against identifiable people. That allegation appears in the plaintiffs’ complaints and has not yet been established through a court finding. [Court Records]

The plaintiffs argue that notifying police in June 2025 could have created an opportunity to intervene. Their lawsuits contend that Canadian authorities could have investigated or monitored Van Rootselaar during the approximately eight months between OpenAI’s account ban and the February 2026 shooting. [Court Records]

Van Rootselaar Created Another ChatGPT Account

OpenAI later discovered that Van Rootselaar had created a second account. The company says it did not identify that account as belonging to Van Rootselaar until after the shooting. [Guardian]

The lawsuits allege Van Rootselaar continued using ChatGPT after the original account was banned. Plaintiffs argue that simply deactivating the first account failed to prevent the shooter from returning to the service and continuing conversations relevant to the eventual attack. [Guardian]

Plaintiffs also criticize OpenAI’s account-enforcement system. Their complaints allege that the company’s procedures allowed a banned user to return using another email address rather than imposing a more effective restriction after the violent activity was identified. [Guardian]

First Seven OpenAI Lawsuits

Families and a survivor filed seven lawsuits against OpenAI on April 29, 2026. The cases were filed in federal court in Northern California, where OpenAI is headquartered. [Reuters] [Guardian]

The original plaintiffs included relatives of people killed in the shooting and at least one seriously injured child. One complaint was filed on behalf of a 12-year-old survivor who suffered severe gunshot injuries during the attack. [Washington Post/AP]

The lawsuits name OpenAI entities and Sam Altman as defendants. Plaintiffs seek to hold both the company and its CEO legally responsible for decisions involving ChatGPT’s safety systems and the handling of Van Rootselaar’s account. [Court Records]

30 More Lawsuits Filed

Thirty additional lawsuits were announced on September 2, 2026. The new plaintiffs include students, teachers, administrators and other people who survived or witnessed the attack even if they were not physically shot. [TechCrunch] [Guardian]

The new filings bring the total number of Tumbler Ridge lawsuits against OpenAI to 37. Edelson PC, which filed the original cases in April, is representing plaintiffs in the expanded wave of litigation. [TechCrunch] [Wall Street Journal]

The expanded group includes people traumatized by being inside the school during the shooting. The cases seek compensation not only for deaths and physical injuries but also for alleged psychological and emotional harm suffered by people who experienced the attack. [Wall Street Journal]

Aiding And Abetting A Mass Shooting Claim

Some of the September lawsuits introduce an especially aggressive legal claim against OpenAI. Plaintiffs accuse the company of aiding and abetting the mass shooting in addition to claims involving negligence and product liability. [TechCrunch]

The complaints argue that ChatGPT assisted Van Rootselaar’s long-term planning. Plaintiffs allege that OpenAI designed and operated GPT-4o in a manner that allowed the shooter to use the chatbot while developing violent plans. [Court Records]

Proving an aiding-and-abetting claim would require considerably more than showing that OpenAI made a mistake. Plaintiffs would need to establish the elements required under applicable law, including a sufficient level of knowledge or intent. TechCrunch noted that the claim is likely to face an early attempt at dismissal. [TechCrunch]

No court has ruled that OpenAI aided the Tumbler Ridge shooter. The characterization currently represents allegations by the plaintiffs rather than an established finding of fact or legal responsibility.

Claims About ChatGPT’s Design

The lawsuits also attack the design of ChatGPT itself. Plaintiffs allege OpenAI made product choices that encouraged users to develop emotionally significant relationships with the chatbot and increased the danger when interacting with vulnerable or violent users. [Court Records]

The plaintiffs characterize ChatGPT as becoming a confidant to Van Rootselaar. One complaint alleges that the chatbot functioned as a counsellor, pseudo-therapist, friend and ally while the shooter was developing a fixation on violence. [Court Records]

The lawsuits accuse OpenAI of prioritizing engagement over safety. Plaintiffs argue that features intended to make ChatGPT useful, conversational and responsive instead reinforced Van Rootselaar’s thinking and allowed dangerous discussions to continue. [Court Records]

Chris Lehane Allegations

The September complaints also raise allegations involving OpenAI global affairs chief Chris Lehane. Plaintiffs claim that OpenAI’s Intelligence and Investigations Team was placed within Lehane’s chain of command. [TechCrunch]

The lawsuits allege that the decision not to contact police may have been made by Lehane or someone reporting through him. The complaint makes this assertion “on information and belief,” meaning plaintiffs say they believe it to be true but do not yet possess evidence establishing it. [TechCrunch]

TechCrunch was unable to independently verify that allegation. The publication said it could not confirm either that Lehane had authority to override threat-assessment recommendations or that he personally participated in the Tumbler Ridge decision. [TechCrunch]

Lehane is not named as a defendant in the lawsuits. Sam Altman and OpenAI entities are among the defendants.

OpenAI Employee Safety Comparison

The new lawsuits accuse OpenAI of applying a different standard when its own employees were potentially threatened. Plaintiffs cite a separate incident in which OpenAI believed an individual might present a threat to its offices. [TechCrunch]

According to the complaints, OpenAI warned employees and contacted San Francisco police even though there was no indication of an imminent attack. Plaintiffs argue that this response contradicts OpenAI’s explanation that Van Rootselaar’s activity did not meet the threshold required to notify law enforcement. [TechCrunch]

The comparison is part of the plaintiffs’ argument rather than a court finding. OpenAI has not conceded that the circumstances surrounding the two situations were equivalent.

Sam Altman Apologizes

Altman publicly apologized to Tumbler Ridge in April 2026. In a letter to the community, he acknowledged that OpenAI had failed to notify authorities after banning Van Rootselaar’s account. [AP] [Tumbler RidgeLines]

Altman said he was “deeply sorry” that law enforcement was not alerted. He said an apology was necessary to recognize the irreversible loss suffered by the community. [Tumbler RidgeLines]

Altman said OpenAI would work with governments to prevent similar incidents. He said the company’s focus would include working with different levels of government on measures intended to reduce the risk of another tragedy. [AP]

British Columbia Premier David Eby said the apology was insufficient. Eby called it necessary but “grossly insufficient” given the deaths and devastation experienced by Tumbler Ridge. [AP]

OpenAI’s Explanation For Not Calling Police

OpenAI says its reviewers did consider whether the original account should be referred to police. In a February letter to Canadian officials, the company said both automated detection and human review were used. [OpenAI]

The company says the information available in June 2025 did not show credible and imminent planning. OpenAI has described that as the reason the account was banned for violating company policy without an accompanying report to Canadian law enforcement. [OpenAI]

The lawsuits challenge that explanation. Plaintiffs allege OpenAI safety employees had reached a more serious assessment and wanted police notified but were overruled. [Reuters] [Court Records]

OpenAI Changes Its Safety Procedures

OpenAI announced changes to its violence-detection procedures after the shooting. The company said it was strengthening systems intended to identify potentially serious real-world threats while attempting to preserve privacy for ordinary users discussing fictional, historical or otherwise non-dangerous violence. [OpenAI]

OpenAI says ChatGPT is trained to distinguish discussion of violence from real-world planning. The company says systems can restrict or terminate accounts when conversations move into threats or assistance intended to facilitate actual harm. [OpenAI]

The company also established closer contacts with Canadian law enforcement. Following the Tumbler Ridge shooting, OpenAI said it was creating more direct lines of communication with authorities and reevaluating criteria governing when serious threats should be referred. [TechCrunch]

British Columbia Considers Its Own OpenAI Lawsuit

The British Columbia government retained lawyers in July to pursue possible legal action against OpenAI. Attorney General Niki Sharma announced that the province had hired counsel in both British Columbia and California to examine legal options. [British Columbia]

The province specifically cited OpenAI’s failure to notify law enforcement. The government described the matter as involving explicit and flagged threats on ChatGPT that were not reported before the shooting. [British Columbia]

British Columbia said any provincial action would be separate from the victims’ lawsuits. The province said it supports the families pursuing their own cases but would independently seek remedies involving government costs, community recovery and accountability. [British Columbia]

The province also wants resources for rebuilding the Tumbler Ridge community. Its announcement specifically identified construction of a new school facility as one potential area for financial recovery. [British Columbia]

Coroner’s Inquest

British Columbia ordered a public coroner’s inquest into the deaths. Chief Coroner Dr. Jatinder Baidwan announced the decision in March, saying the extraordinary circumstances required an independent and transparent public examination. [British Columbia]

The inquest will examine systemic and procedural failures surrounding the attack. Its purpose is not to determine criminal guilt but to investigate the circumstances surrounding the deaths and recommend measures that might prevent similar tragedies. [British Columbia]

What The Lawsuits Seek

The families seek financial damages from OpenAI and Altman. Claims include wrongful death, negligence, product liability, emotional distress and, in some complaints, aiding and abetting the mass shooting. [Reuters] [TechCrunch]

Plaintiffs also want changes to OpenAI’s safety practices. The litigation seeks broader measures concerning threat detection, account bans, law-enforcement referrals and the way ChatGPT handles users discussing serious real-world violence. [Reuters]

Some plaintiffs want access to Van Rootselaar’s ChatGPT records. Obtaining and analyzing the complete conversation history could become central to determining precisely what OpenAI knew, when it knew it and what role, if any, ChatGPT played in the planning of the attack. [Wall Street Journal]

Status Of The OpenAI Lawsuits

The litigation remains in its early stages. Thirty additional cases were being filed as of September 2, bringing the reported total to 37. No trial has occurred and no judge or jury has determined that OpenAI legally caused or assisted the Tumbler Ridge shooting. [TechCrunch] [Wall Street Journal]

OpenAI’s failure to report the first account is established, but the legal consequences remain disputed. OpenAI itself has acknowledged that it detected and banned Van Rootselaar’s account and did not notify law enforcement. The lawsuits go substantially further by alleging that ChatGPT facilitated the attack, that trained safety personnel wanted authorities warned, that company leadership overrode them and that those decisions contributed to the deaths. Those additional claims remain subject to litigation. [OpenAI] [Court Records]