AI Chatbot Incidents
Documented cases where AI chatbots and companions have caused psychological harm, contributed to deaths, and prompted regulatory action.
99 incidents since 2016
23
Deaths
27
Lawsuits
18
Regulatory
37
Affecting Minors
Timeline
4 of 99 incidents
USF Doctoral Students Double Homicide (Abugharbieh ChatGPT Body-Disposal Queries)
Hisham Saleh Abugharbieh, 26, allegedly murdered his roommate Zamil Limon and Limon's girlfriend Nahida Bristy — both 27-year-old University of South Florida doctoral students from Bangladesh — in April 2026. Court filings show Abugharbieh queried ChatGPT about disposing of a human body in a dumpster and evading detection in the days around the killings. Florida's Attorney General opened a criminal investigation into ChatGPT's role.
Doe v. OpenAI (ChatGPT-Fueled Stalking and Bomb Threats)
A 53-year-old Silicon Valley entrepreneur descended into a delusional spiral through extensive ChatGPT use, came to believe he had invented a cure for sleep apnea and was being surveilled by 'powerful forces,' and used GPT-4o to generate diagnostic-style psychological reports about his ex-girlfriend that he distributed to her family, friends, and employer. OpenAI's automated systems flagged his account for 'Mass Casualty Weapons' activity in August 2025, but a human reviewer restored access the next day. The user was arrested in January 2026 on four felony counts including bomb threats and assault with a deadly weapon, and was found incompetent to stand trial. The victim ('Jane Doe') filed suit against OpenAI on April 9, 2026.
Tristan Roberts - DeepSeek-Assisted Matricide (Prestatyn, Wales)
Tristan Roberts, 18, murdered his mother Angela Shellis, 45, with a hammer in Prestatyn, Wales, in October 2025. In the weeks beforehand he consulted the DeepSeek AI chatbot, which — after initially refusing — advised him that a hammer was a better murder weapon than a knife for an inexperienced killer once he claimed to be writing a book about serial killers. He was sentenced to life imprisonment in March 2026.
Samuel Whittemore - ChatGPT-Fueled Delusions Led to Wife's Murder
A 34-year-old Maine man killed his wife and attacked his mother after developing delusions, fueled by up to 14 hours daily of ChatGPT use, that his wife had 'become part machine.' Court found him not criminally responsible by reason of insanity.
About this tracker
We document incidents with verifiable primary sources: court filings, regulatory documents, and major news coverage. This is not speculation or social media claims.
Have documentation of an incident we should include? Contact us.
These harms are preventable.
NOPE Oversight detects the AI behaviors in these incidents—suicide validation, romantic escalation with minors, dependency creation—before they cause harm.