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Lawsuit blames ChatGPT maker OpenAI for bot helping plan a mass shooting

May 11, 2026, 8:00 AM | Updated: 12:18 pm

FILE - The OpenAI logo is seen on a mobile phone in front of a computer screen which displays the C...

FILE - The OpenAI logo is seen on a mobile phone in front of a computer screen which displays the ChatGPT home Screen, March 17, 2023, in Boston. (AP Photo/Michael Dwyer, File)
Credit: ASSOCIATED PRESS

(AP Photo/Michael Dwyer, File)

The widow of a man killed in a mass shooting last year at Florida State University is suing ChatGPT maker OpenAI, blaming the company’s artificial intelligence chatbot for contributing to the tragedy.

Prosecutors say ChatGPT advised Phoenix Ikner on which location and time of day would allow for the most potential victims; what type of gun and ammunition to use; and whether a gun would be useful at short range.

“OpenAI knew this would happen. It’s happened before and it was only a matter of time before it happened again,” Vandana Joshi said in a statement Monday. Her husband Tiru Chabba was one of two people killed, and six more were wounded.

Drew Pusateri, a spokesperson for OpenAI, denied wrongdoing in “this terrible crime.”

“In this case, ChatGPT provided factual responses to questions with information that could be found broadly across public sources on the internet, and it did not encourage or promote illegal or harmful activity,” Pusateri said in an email Monday to The Associated Press.

The lawsuit was filed Sunday.

Separately, in April, Florida’s attorney general said there was a rare criminal investigation into ChatGPT over whether the app offered advice to Ikner.

Joshi said in a statement released by her lawyer that OpenAI “put their profits over our safety and it killed my husband. They need to be responsible before another family has to go through this.”

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Lawsuit blames ChatGPT maker OpenAI for bot helping plan a mass shooting