20-year-old suspect arrested after throwing Molotov cocktail at Sam Altman's San Francisco home, OpenAI says

A man has been taken into custody following an alleged attack with a Molotov cocktail at the home of Sam Altman, CEO of OpenAI, in San Francisco, the company confirmed.

Fortunately, no one was injured in the incident, according to statements from both the San Francisco Police Department and OpenAI.

The episode occurred early Friday morning, around 4 a.m., when an individual reportedly hurled a firebomb at Altman’s residence in the Russian Hill neighborhood, igniting a blaze on an exterior gate, police reported.

The suspect fled the scene on foot, but police officers received a description of the individual shortly after the attack.

An hour later, at approximately 5 a.m., officers were called to OpenAI’s headquarters where a man was allegedly making threats to set a building on fire. Upon arrival, officers identified the man as the suspect involved in the earlier incident.

The suspect, a 20-year-old male, was subsequently arrested, with charges pending, according to police officials.

The San Francisco District Attorney’s Office told ABC News that it could be next week until decisions are made on whether it’s a local or federal case and charges are filed.

Sources briefed on the investigation told ABC News that investigators are trying to understand the incident and motive. It’s not yet clear if it was a mental health incident, a disgruntled current or former employee or some form of domestic terrorism, the sources said.

The company said the situation is under control and there is no immediate threat to its offices.

“We deeply appreciate how quickly SFPD responded and the support from the city in helping keep our employees safe,” OpenAI said in a statement. “We’re assisting law enforcement with their investigation.”

Altman responded to the incident in a lengthy blog post on Friday, in which he shared a photo of his family “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 said that amid debates on the Artificial General Intelligence industry, “we should de-escalate the rhetoric and tactics and try to have fewer explosions in fewer homes, figuratively and literally.”

The SFPD’s Special Investigations and Arson Units are leading the investigation, the company said. The FBI said it’s aware of the incident and is working with San Francisco police.

Now Streaming 24/7 Click Here

Copyright © 2026 ABC News Internet Ventures.

You May Also Like

'That was the last I heard from him': Slain NJ therapist’s neighbor recalls last contact with husband

Neighbor of Slain New Jersey Therapist Recalls Chilling Last Contact With Her Husband

Authorities offer $1,000 reward for tips in brutal stabbing of New Jersey…
USPS to raise the price of a Forever stamp to 82 cents on Sunday. Here's what to know.

USPS Forever Stamp Price Rises to 82 Cents Sunday: What to Know

The U.S. Postal Service will increase the cost of a first-class Forever…
After Geneva Lake boat capsized, leaving 3 children dead, Chicago brothers recount rescues during strong storm

Chicago Brothers Describe Rescues After Geneva Lake Boat Capsizes in Storm, Killing 3 Children

CHICAGO (WLS) — A sudden, violent storm tore across Geneva Lake on…
Tattooed arm in Illinois lake leads police to freezer with slain man’s head, neck and torso

Tattooed Arm Found in Illinois Lake Leads Police to Freezer Holding Slain Man’s Remains

Authorities say an Illinois man stabbed his half-brother to death during a…
'Hell on wheels' killer Mackenzie Shirilla poses for prison photoshoot after legal setback

Mackenzie Shirilla Poses for New Prison Photos After Legal Setback

Convicted murderer Mackenzie Shirilla, the Ohio woman whose case drew national attention…
DA launches probe into claims Long Island school clerk trashed ballots to help DJ win election

DA Investigates Claims Long Island School Clerk Tossed Ballots to Help DJ Win Election

The Nassau County District Attorney’s Office has opened an investigation into a…
WATCH: South Carolina block party thugs with machine gun, spear charged in mob attack on officers, police say

South Carolina Block Party Suspects Armed With Machine Gun, Spear Charged in Mob Attack on Officers, Police Say

Six people, including four juveniles, are facing charges after a Fourth of…
ICE says officer shot and killed illegal immigrant who tried to ram him with car in Houston

ICE Says Officer Fatally Shot Migrant Who Allegedly Tried to Ram Him With a Car in Houston

A man described by U.S. Immigration and Customs Enforcement as an undocumented…
'Shark Tank' Season 18: MrBeast, Mindy Kaling, J.J. Watt, Erin Foster and Sara Foster and more guest Sharks announced

Shark Tank Season 18 Guest Sharks Revealed: MrBeast, Mindy Kaling, J.J. Watt and More Join the Tank

ABC’s popular business reality series “Shark Tank” is set to return for…
Tyler Robinson's and Lance Twiggs' DNA both allegedly found on key evidence in Charlie Kirk's assassination

Investigators Allegedly Find Tyler Robinson and Lance Twiggs DNA on Key Evidence in Charlie Kirk Assassination

PROVO, Utah — DNA belonging to accused Charlie Kirk killer Tyler Robinson…
Hamas says it will dissolve Gaza government, but Israel warns group still seeks Hezbollah-style control

Hamas Pledges to Dissolve Gaza Government as Israel Warns of Hezbollah-Style Shadow Rule

Hamas said Monday it is disbanding the emergency committee that has managed…
Charlie Kirk murder suspect ate at Chick-fil-A and changed clothes before shooting activist, agent says

Agent Says Charlie Kirk Shooting Suspect Ate at Chick-fil-A and Changed Clothes Before Attack

The man accused of killing Charlie Kirk allegedly spent hours on the…