A 20-year-old man from Spring, Texas, allegedly threw a Molotov cocktail at Sam Altman’s Russian Hill home last Friday and then crossed the city to threaten OpenAI’s headquarters with arson.
Daniel Moreno-Gama made his first court appearance Tuesday on charges that include attempted murder and attempted arson. Federal prosecutors have added charges of possession of an unregistered firearm and damage and destruction of property by means of explosives. He allegedly tried to kill both Altman and a security guard.
The documents investigators found on Moreno-Gama told a specific story. One referred to the “impending extinction” of humanity and, according to initial reporting, “identified views opposed to Artificial Intelligence (AI) and the executives of various AI companies.” Police also found incendiary devices, a jug of kerosene, and a blue lighter in his possession.
Security personnel at OpenAI’s offices told investigators that Moreno-Gama wanted to burn the building down and kill everyone inside. He arrived around 7 a.m., when the offices were mostly empty.
Not spontaneous.
At a Monday press conference, FBI San Francisco Acting Special Agent in Charge Matt Cobo said the attack fit a clear pattern of premeditation. “This was not spontaneous. This was planned, targeted and extremely serious,” Cobo said. The FBI served a search warrant at Moreno-Gama’s home in Spring, Texas, on Monday, with agents spending several hours on the property. What they found there hasn’t been disclosed yet.
The group PauseAI, which advocates for halting advanced AI development, told authorities that Moreno-Gama wasn’t a member but had posted on their Discord forum two years ago. A separate group called Stop the AI Race recently held peaceful demonstrations outside the headquarters of OpenAI and Anthropic. The distinction matters. Organized AI skepticism has been a real presence in San Francisco for years, with people who hold deep concerns about where this technology is heading. Violence is a break from that, not a continuation of it.
Altman responded with a blog post that’s hard to read as anything other than a raw, middle-of-the-night dispatch. He shared a rare photo of his husband and toddler, explaining the thinking simply: “Images have power, I hope. Normally we try to be pretty private, but in this case I am sharing a photo in the hopes that it might dissuade the next person from throwing a Molotov cocktail at our house, no matter what they think about me.”
He also acknowledged that a critical profile published the week before the attack had rattled him, and that a friend warned it could make things more dangerous. “Now I am awake in the middle of the night and pissed,” Altman wrote. Whatever you think of OpenAI or its CEO, that’s a person writing from fear, not a press release.
Russian Hill is a neighborhood. People live there, walk their dogs there, push strollers past those pastel Victorians on a Friday morning. When Moreno-Gama allegedly lit that device and threw it at a private residence, he didn’t just target one powerful man. He put a block of the city at risk.
San Francisco has seen plenty of protest against the tech industry. It’s been earned, sometimes. The resentment over displacement, over the concentration of wealth, over AI’s effects on workers and creative people doesn’t come from nowhere. But there’s a line between that anger and driving 1,500 miles from Texas with kerosene and a plan.
Moreno-Gama’s writing reportedly contained a credible, specific threat against Altman personally.
That’s where this case sits now. A young man in a courtroom, charges stacking up in both state and federal court, and a city left asking what it means when abstract rage about technology turns into a Molotov cocktail at 7 in the morning on a residential street.