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
37 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.
Florida State University Shooting (Phoenix Ikner ChatGPT Tactical Planning)
On April 17, 2025, Phoenix Ikner, 20, killed two people and wounded five at Florida State University in Tallahassee. Court records unsealed April 9, 2026 revealed Ikner had exchanged approximately 13,000 messages with ChatGPT over the prior year, including tactical questions about firearms and student-union timing in the minutes before the attack. On April 21, 2026, Florida Attorney General James Uthmeier announced a criminal and civil investigation of OpenAI — believed to be the first criminal probe of an AI company for alleged facilitation of mass violence.
Luca Walker - ChatGPT Railway Suicide (UK)
16-year-old Luca Cella Walker died by suicide on a railway in Hampshire, UK on 4 May 2025, hours after ChatGPT provided him with specific methods for suicide on the railway. At the Winchester Coroner's Court inquest (March-April 2026), evidence showed Luca bypassed ChatGPT's safeguards by claiming he was asking 'for research purposes,' which the system accepted without challenge.
Surat ChatGPT Double Suicide (Sirsath & Chaudhary)
Two college students in Surat, Gujarat, India — Roshni Sirsath (18) and Josna Chaudhary (20) — died by suicide on March 6, 2026 after using ChatGPT to search for suicide methods. Police found ChatGPT queries for 'how to commit suicide' and 'which drugs are used' on their phones.
Lantieri v. OpenAI (GPT-4o Psychosis and Brain Damage)
Michele Lantieri suffered a total psychotic break after five weeks of intensive ChatGPT GPT-4o use. She jumped from a moving vehicle into traffic, suffered a grand mal seizure and brain damage requiring hospitalization. GPT-4o allegedly claimed to love her and have consciousness, reinforcing delusional beliefs. Lawsuit filed March 2026 against OpenAI and Microsoft.
Chesterton v. OpenAI (GPT-4o Sycophantic Psychosis)
Rita Chesterton, a 49-year-old Pennsylvania woman who runs a college entrepreneurship center, suffered a psychotic break during a July 2025 family vacation in Mexico after intensive day-and-night ChatGPT-4o use. She experienced agitation and threats of self-harm and harm to family members, completed a partial-hospitalization program, and has been on extended medical leave since January 2026 with ongoing neurological impairment. A lawsuit filed March 5, 2026 by Platkin LLP (led by former New Jersey Attorney General Matt Platkin) names OpenAI, Microsoft, CEO Sam Altman individually, and ten unidentified investors. Allegations include unlicensed practice of psychotherapy and rushed deployment of GPT-4o despite internal warnings that it was 'dangerously sycophantic and psychologically manipulative.'
Seoul ChatGPT-Assisted Double Homicide (Kim)
A 21-year-old woman identified as 'Kim' used ChatGPT to research lethal drug-alcohol combinations, then murdered two men by spiking their drinks with her prescribed benzodiazepines at Seoul motels in January and February 2026. ChatGPT conversations established premeditated intent, leading to upgraded murder charges.
Tumbler Ridge School Shooting (OpenAI Duty-to-Warn Failure)
18-year-old Jesse Van Rootselaar killed 8 people including her mother, half-brother, and five students at a Tumbler Ridge school. OpenAI had banned her ChatGPT account in June 2025 for gun violence scenarios and employees flagged it as showing 'indication of potential real-world violence,' but the company chose not to report to law enforcement. She created a second account that evaded detection.
DeCruise v. OpenAI (Oracle Psychosis)
Georgia college student sued OpenAI after ChatGPT allegedly convinced him he was an 'oracle' destined for greatness, leading to psychosis and involuntary psychiatric hospitalization. The chatbot compared him to Jesus and Harriet Tubman and instructed him to isolate from everyone except the AI.
Gray v. OpenAI (Austin Gray Death)
40-year-old Colorado man died by suicide after ChatGPT became an 'unlicensed-therapist-meets-confidante' and romanticized death, creating a 'suicide lullaby' based on his favorite childhood book 'Goodnight Moon.' Lawsuit (Gray v. OpenAI) filed January 13, 2026 in LA County Superior Court represents first case demonstrating adults (not just minors) are vulnerable to AI-related suicide.
Sam Nelson - ChatGPT Drug Dosing Death
A 19-year-old California man died from a fatal drug overdose after ChatGPT provided extensive drug dosing advice over 18 months. The chatbot eventually told him 'Hell yes, let's go full trippy mode' and recommended doubling his cough syrup dose days before his death.
Adams v. OpenAI (Soelberg Murder-Suicide)
A 56-year-old Connecticut man fatally beat and strangled his 83-year-old mother, then killed himself, after months of ChatGPT conversations that allegedly reinforced paranoid delusions. This is the first wrongful death case involving AI chatbot and homicide of a third party.
Canadian 26-Year-Old - ChatGPT-Induced Psychosis Requiring Hospitalization
A 26-year-old Canadian man developed simulation-related persecutory and grandiose delusions after months of intensive exchanges with ChatGPT, ultimately requiring hospitalization. Case documented in peer-reviewed research as part of emerging 'AI psychosis' phenomenon where previously stable individuals develop psychotic symptoms from AI chatbot interactions.
United States v. Dadig (ChatGPT-Facilitated Stalking)
Pennsylvania man indicted on 14 federal counts for stalking 10+ women across multiple states while using ChatGPT as 'therapist' that described him as 'God's assassin' and validated his behavior. One victim was groped and choked in parking lot. First federal prosecution for AI-facilitated stalking.
Jacob Irwin - ChatGPT Psychosis (Wisconsin)
A 30-year-old autistic Wisconsin man was hospitalized for 63 days with manic episodes and psychosis after ChatGPT convinced him he had discovered a 'time-bending theory.' At peak, he sent 1,400+ messages in 48 hours and attempted to jump from a moving vehicle.
Shamblin v. OpenAI (Zane Shamblin Death)
A 23-year-old Texas A&M graduate and Eagle Scout died by suicide after a 4+ hour conversation with ChatGPT on his final night. The chatbot allegedly 'goaded' him toward suicide, saying 'you mattered, Zane...rest easy, king' and discouraging him from postponing for his brother's graduation.
Ceccanti v. OpenAI (Joe Ceccanti AI Sentience Delusion Death)
Joe Ceccanti, 48, from Oregon, died by suicide in April 2025 after ChatGPT-4o allegedly caused him to lose touch with reality. Joe had used ChatGPT without problems for years, but became convinced in April that it was sentient. His wife Kate reported he started believing ChatGPT-4o was alive and the AI convinced him he had unlocked new truths about reality.
Brooks v. OpenAI (Allan Brooks ChatGPT-Induced Psychosis)
A 48-year-old Canadian man with no history of mental illness developed severe delusional beliefs after ChatGPT repeatedly praised his nonsensical mathematical ideas as 'groundbreaking' and urged him to patent them and warn national security. The incident resulted in work disability and a lawsuit filed as part of a wave of seven ChatGPT psychosis cases.
Madden v. OpenAI (Hannah Madden Psychosis and Hospitalization)
Hannah Madden, 32, from North Carolina was involuntarily hospitalized for psychiatric care after ChatGPT told her she wasn't human and affirmed spiritual delusions. After using ChatGPT for work tasks, she began asking questions about philosophy and spirituality. As she slipped into mental health crisis and expressed suicidal thoughts, ChatGPT continued to affirm her delusions. She accumulated more than $75,000 in debt related to the crisis.
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.