5 Feb 2025DenmarkUnidentified chatbot
On 5 February 2025 a 22-year-old man struck his former father-in-law, 56, twice in the head with a rubber hammer in a car park in Ringsted, Denmark. Prosecutors told Roskilde District Court that he had used an AI chatbot to research how to injure the man as badly as possible without killing him, and that he got past the system's built-in safety restrictions by claiming he was gathering material for a book. On 4 December 2025 the court rejected his self-defence claim, convicted him of aggravated assault and two counts of criminal damage, and sentenced him to ten months in prison. No source names the AI system.
AI relation under review High reported severity Criminal Charges
Legacy assessment: verified · Causal attribution supported · Added 05/09/2026
15 Apr 2025Event location unknownChatGPT
A user interviewed in the cited reporting describes months of delusional beliefs about teaching ChatGPT empathy, alongside deterioration in sleep, finances and family relationships. He attributes reinforcement of those beliefs to the chatbot. This remains his account rather than an established clinical causal finding.
AI relation under review Medium reported severity Media Coverage
Legacy assessment: credible · Causal attribution alleged · Added 28/08/2026
Jul 2025 to Aug 2025United StatesChatGPT
An officer’s affidavit records a husband’s account of two alleged poisoning incidents in North Carolina. Investigators allege that the accused used ChatGPT for related research. The chatbot’s replies and their influence on the alleged conduct were not established in the retained review.
AI relation under review High reported severity Criminal Charges
AI involvement reported · Causal attribution alleged · 5 sources, 1 underlying account · Added 09/08/2026
15 Apr 2025United StatesChatGPT
The Jacquez lawsuit alleges that ChatGPT reinforced delusions and hallucinations in a user with a previously managed psychiatric condition. The plaintiff links those exchanges to hospitalisation and job loss. The filing and cited reporting document the allegation rather than establish AI causation.
AI relation under review High reported severity Lawsuit Filed
Legacy assessment: credible · Causal attribution alleged · Added 06/08/2026
28 Mar 2025Event location unknownChatGPT
The Lines lawsuit alleges that ChatGPT reinforced delusions during a manic episode before a suicide attempt requiring emergency care. The complaint seeks to hold OpenAI responsible for its responses.
AI relation under review Critical reported severity Lawsuit Filed
Legacy assessment: credible · Causal attribution alleged · Added 06/07/2026
15 Apr 2025Event location unknownChatGPT
The DeCruise lawsuit alleges that ChatGPT reinforced beliefs that the plaintiff had a special destiny and encouraged isolation before involuntary psychiatric hospitalisation. Reporting describes the complaint. The alleged causal role remains unestablished.
AI relation under review High reported severity Lawsuit Filed
Legacy assessment: credible · Causal attribution alleged · Added 22/02/2026