SAN BRUNO, CALIFORNIA — A woman opened fire at YouTube headquarters in San Bruno on Tuesday afternoon, wounding three people before taking her own life. <br /><br />According to law enforcement sources, the shooting was a domestic dispute, with the shooter targeting someone at the campus, according to the L.A. Times. <br /><br />The shooting took place at around 12:46 p.m. in an outdoor cafe on the grounds. It's still unclear if the attacker worked at YouTube. <br /><br />San Bruno Police Chief Ed Barberini told press on Tuesday that one person, believed to be the shooter, was found dead of a self-inflicted gunshot wound, according to the L.A. Times. <br /><br />Three victims were transported to San Francisco General Hospital with gunshot wounds. A 27-year-old woman is in fair condition, a 32-year-old woman is in serious condition and a 36-year-old man is in critical condition, hospital officials said, according to SFGate.