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Suspect in attack at Sam Altman’s house charged with attempted murder and attempted arson

Authorities say the suspect traveled from Texas and later threatened OpenAI’s headquarters after the attack, with federal agents calling the case domestic terrorism.

  • On Monday, authorities charged Daniel Moreno-Gama, 20, with attempted murder and arson after he was arrested Friday outside OpenAI's San Francisco offices for allegedly attacking OpenAI CEO Sam Altman.
  • Moreno-Gama allegedly threw a Molotov cocktail at Altman's home on Friday night, then struck OpenAI's glass doors with a chair while threatening "to burn it down and kill anyone inside."
  • A document found on the suspect identified "views opposed to Artificial Intelligence" and discussed the purported risk to humanity, while listing names and addresses of industry leaders including Altman.
  • The FBI described the attack as "planned, targeted and extremely serious," while Attorney Craig Missakian stated prosecutors may pursue domestic terrorism charges if evidence shows intent to coerce officials.
  • FBI agents raided Moreno-Gama's Texas home on Monday, and FBI Director Kash Patel thanked investigation teams for their coordination as authorities continue weighing charges against the suspect.
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April 13, 2026 – Los Angeles, U.S.A. – EFE. A 20-year-old is facing serious federal charges after being linked to a violent attack directed against the property of Sam Altman, current executive director of OpenAI. U.S. authorities filed formal charges for damage and destruction of property through the use of explosives, in addition to possession of an unregistered firearm. This incident has set off alarms about the safety of leaders in the artif…

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Forbes broke the news in United States on Monday, April 13, 2026.
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