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Man accused of attacking OpenAI CEO Sam Altman's home pleads not guilty to attempted murder

Defense lawyers say the case stems from a mental health crisis as the 20-year-old also faces federal charges.

  • On Tuesday, Daniel Alejandro Moreno-Gama pleaded not guilty to attempted murder and arson charges in the Molotov cocktail attack on OpenAI CEO Sam Altman's San Francisco home.
  • Authorities allege Moreno-Gama, of Spring, Texas, threw the device at Altman's residence last month, then traveled about 3 miles to OpenAI's headquarters and threatened to burn down the building.
  • Court filings show Moreno-Gama expressed hatred of artificial intelligence in his writings, describing it as a danger to humanity and warning of "impending extinction."
  • Defense attorney Diamond Ward argued the incident was a "property crime, at best," claiming prosecutors were attempting to curry favor with Altman rather than addressing his client's mental health crisis.
  • The 20-year-old faces 19 years to life in prison on state charges; Ward requested a mental health evaluation on Tuesday, with a hearing scheduled for later this month.
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Man accused of attacking OpenAI CEO Sam Altman's home pleads not guilty to attempted murder

The man accused of throwing a Molotov cocktail at the San Francisco home of OpenAI CEO Sam Altman has pleaded not guilty to charges of attempted murder and attempted arson.

·United States
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The man accused of throwing an incendiary bomb at the San Francisco house of OpenAI Executive Director Sam Altman pleaded not guilty on Tuesday on charges of attempted murder and attempted arson.

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NBC Bay Area broke the news in San Francisco, United States on Tuesday, May 5, 2026.
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