TEXT: A YouTube sign is seen at YouTube's corporate headquarters during an active shooter situation in San Bruno, California on April 03, 2018.                               Gunshots erupted at YouTube's offices in California Tuesday, sparking a panicked escape by employees and a massive police response, before the shooter -- a woman -- apparently committed suicide.Police said three people had been hospitalized with gunshot injuries following the shooting in the city of San Bruno, and that a female suspect was found dead at the scene. 'We have one subject who is deceased inside the building with a self-inflicted wound,' San Bruno Police Chief Ed Barberini told reporters. 'At this time, we believe it to be the shooter.'          / AFP PHOTO / JOSH EDELSON        (Photo credit should read JOSH EDELSON/AFP/Getty Images)