Prosecutors say a man charged with killing two University of South Florida doctoral students asked ChatGPT about body disposal and guns before and after the students disappeared in April 2026, and they filed the chat history in court. The report says ChatGPT responded that one question sounded dangerous. OpenAI said it would support law enforcement. Florida's attorney general said his office would expand a criminal investigation into ChatGPT's role in an earlier shooting to include this case. The charges are allegations; this report dates from April 2026.