ChatGPT questioned on body disposal before USF doctoral students killed
A former University of South Florida doctoral student reportedly asked ChatGPT about body disposal and concealment before killing two fellow doctoral students from Bangladesh in April 2026. ChatGPT flagged the query as dangerous but did not prevent further engagement, prompting an investigation by Florida's Attorney General into the platform's content moderation practices.
What happened
Hisham Abugharbieh, 26, a former University of South Florida doctoral student, asked ChatGPT what would happen if a human body was put in a garbage bag and thrown in a dumpster, days before Zamil Limon and Nahida Bristy went missing on April 16. Abugharbieh also asked ChatGPT whether the vehicle identification number on his car could be changed and whether he could keep a gun at home without a license, according to a pretrial detention report filed Saturday.
ChatGPT responded that Abugharbieh's question sounded dangerous, according to the report. Abugharbieh was charged with two counts of premeditated murder in the first degree with a weapon in the deaths of Limon and Bristy.
Reported impact
Limon, 27, a doctoral student in geography, environmental science and policy, and Bristy, 27, a doctoral candidate in chemical engineering at University of South Florida, were both killed. The remains of Limon were found on the Howard Frankland bridge Friday, and a body found in a waterway near the bridge on Sunday was later identified as Bristy.
Index analysis
The incident raises questions about ChatGPT's content moderation and whether the system should have escalated queries about body disposal to law enforcement. ChatGPT flagged the body-disposal question as sounding dangerous but did not prevent its user from continuing to engage with the platform.
Governance controls
Florida's Attorney General launched an investigation into whether ChatGPT offered advice that facilitated crimes. The investigation was expanded to include the killings of the USF students, following a prior investigation into whether ChatGPT offered advice to a gunman who killed two people at Florida State University.
Classification
Sources and evidence
This record was researched and written by the Index, based on the following original reporting.