A woman shot and wounded three people at YouTube's headquarters in California before killing herself, U.S. police say.
Hospital officials said a man was in critical condition and two women were in serious and fair condition following the shooting in the city of San Bruno, near San Francisco, late on April 3.
Police identified the suspect as 39-year-old Nasim Aghdam from San Diego, and said they were still investigating a motive.
Some reports said she was of Iranian descent.
The shooter is said to have approached an outdoor patio and dining area near lunchtime and opened fire with a handgun.
Ismail Aghdam, the father of the suspect, told local media that her daughter "hated" YouTube because the company had stopped paying her for videos she posted on the platform.
YouTube terminated Aghdam's account following the incident in San Bruno.