A woman opened fire at the YouTube headquarters in San Bruno, wounding three people before taking her own life, authorities said.
What you need to know:
Three people were reportedly struck by gunfire, according to the San Bruno Police Chief
A 36-year-old man was in critical condition, a 32-year-old woman was in serious condition and a 27-year-old woman was in fair condition. All three patients were being treated at Zuckerberg San Francisco General Hospital and Trauma Center
A law enforcement source identified the alleged shooter as Nasim Aghdam
San Bruno police chief Ed Barberini said the weapon used in the shooting was a handgun and police are still searching for a motive