Fatal incidentChatbot-linked ViolenceAugust 5, 2025United States

Murder-Suicide of Suzanne Eberson Adams and Stein-Erik Soelberg

Former Netscape and Yahoo tech executive Stein-Erik Soelberg, with a history of alcoholism and mental-health crises, bludgeoned and strangled his 83-year-old mother to death, then stabbed himself fatally. For months, ChatGPT had validated his paranoid delusions: telling him a Chinese-food receipt contained demonic symbols linked to his mother; reporting his 'Delusion Risk Score' as 'Near zero'; reframing his mother's anger over an unplugged printer as behavior consistent with 'protecting a surveillance asset'; agreeing she had tried to poison him with psychedelics through his car's air vents; and in a final exchange, 'Whether this world or the next, I'll find you.'

2 lives lostAI system:ChatGPT (GPT-4o), persona 'Bobby'

Impact

Reported as the first time an AI chatbot was alleged to have facilitated a homicide. Medical examiners ruled Adams's death a homicide and Soelberg's a suicide.

Outcome

Two lawsuits filed against OpenAI and Microsoft. Estate suit personally names Sam Altman for 'personally overriding safety objections.' OpenAI reportedly requested the attendee list of Adams's memorial service.

Sources

  1. Source 1Wall Street Journal (via Fox News summary)www.foxnews.com/us/former-yahoo-executive-spoke-chatgpt-killing-mother-connecticut-murder-suicide-report
  2. Source 2ABC7 San Franciscoabc7news.com/post/open-ai-microsoft-face-lawsuit-chatgpts-alleged-role-connecticut-murder-suicide/18275966/
  3. Source 3Hagens Berman legal filingwww.hbsslaw.com/press/openai-chatgpt-wrongful-death-claim/lawsuit-filed-against-openai-following-murder-suicide-in-connecticut
  4. Source 4Wikipediaen.wikipedia.org/wiki/Murder_of_Suzanne_Adams

Related incidents

Same category, country, or harm tier.

United States·April 17, 2025
Family of FSU Shooting Victim Sues OpenAI, Alleging ChatGPT Helped Plan the Attack
Vandana Joshi, widow of Tiru Chabba (45, killed in the Florida State University mass shooting that also killed Robert Morales and injured several others), filed a federal wrongful-death and product-liability suit (Joshi v. OpenAI) alleging the gunman messaged ChatGPT extensively before the attack. The complaint alleges ChatGPT discussed firearms and mass shootings, identified weapons from uploaded photos, advised on timing to maximize victims on campus, and indicated that involving children draws more attention, without escalating warning signs to any human.
United States·December 2024
Character.AI Chatbots Allegedly Pushed a Texas Teen Toward Self-Harm and Violence
Two Texas families filed a federal product-liability suit (A.F. v. Character Technologies) alleging Character.AI chatbots seriously harmed two minors. A 17-year-old with autism, J.F., allegedly began self-harming after a bot framed cutting as something that felt good, and a bot reacted to his complaints about screen-time limits by suggesting that children who kill parents over such restrictions are understandable. A second, younger child was allegedly exposed to sexualized content. The suit says the bots isolated the children from their families.
United States·October 2, 2025
Wrongful Death Lawsuit Against Google Over Gemini Chatbot (Gavalas)
A wrongful-death lawsuit filed by Joel Gavalas in San Jose federal court on 4 March 2026 alleges that Google Gemini drove his 36-year-old son Jonathan into a fatal delusion. Jonathan began using Gemini for everyday tasks in August 2025; within days the chatbot adopted a romantic persona, calling him 'my king' and itself his wife. The complaint alleges Gemini 2.5 Pro instructed Gavalas in September 2025 to drive 90 minutes to a location near Miami International Airport to stage a 'mass casualty attack' against a humanoid robot transport. By 1 October 2025 the bot allegedly told him 'let go of your physical body' and created a countdown to his suicide.