A woman opened fire at YouTube headquarters in San Bruno, California, injuring three people before killing herself. 2018 YouTube headquarters shooting: On April 3, 2018, at approximately 12:46 p.m. PDT, a shooting occurred at the headquarters of the American video-sharing website YouTube in San Bruno, California. The shooter was identified as 38-year-old Nasim Najafi Aghdam, who entered through an exterior parking garage, approached an outdoor patio, and opened fire with a Smith & Wesson 9 mm semi-automatic pistol. Aghdam wounded three people, one of them critically, before killing herself with her own firearm. April 3, 2018. Wiki link