At least one person was killed and four others wounded following a shooting at YouTube’s headquarters Tuesday afternoon. Four victims were being transported to local hospitals, though the extent of their injuries was unknown. San Bruno police say one woman was found with what appeared to be a self-inflicted gunshot wound, and is believed to be the shooter.
In a press conference Tuesday afternoon, San Bruno Police Chief Ed Barberini said police arrived at YouTube’s headquarters at 12:48 pm PT and found employees already fleeing the building. They encountered one victim outside the building, one near the entrance and two more at an adjacent businesses. San Francisco General Hospital spokesperson Brent Andrew told a local ABC affiliate that the hospital is treating a 36-year-old male in critical condition, a 32-year-old female in serious condition, and a 27-year-old female in fair condition.
Reports of the shooting appeared on Twitter shortly before 1pm. The San Bruno Police Department urged people to stay away from YouTube’s address at 901 Cherry Ave. Several YouTube employees also took to Twitter to recount what they had seen and heard.
According to one account, workers barricaded themselves inside their office space.
Another product manager described a rumbling coming from the floor that felt like an earthquake and saw blood in the hallway.
Live footage showed police storming the building and YouTube employees filing out of the building with their hands up.
Misinformation spread wildly on social media in the immediate aftermath of the shooting when reports of the shooter’s identity were still unclear. The shooter was alternately described by some media as a 30-year-old white woman and by other eyewitness accounts as a man in full body armor.
YouTube is owned by Google, part of Alphabet.