YouTube HQ shooting: Female shooter wounds three at California headquarters then kills herself

This image taken from video from KGO-TV shows a person is searched as police respond to reports of a shooting at YouTube headquarters in the city of San Bruno, Calif. | AP

Carl's Jr. workers and others sit in a shopping center parking lot near YouTube's offices in San Bruno, Calif. | AP

Two law enforcement officials identified the suspect later Tuesday as Nasim Aghdam of Southern Californi. | AP

Armed law enforcement personnel exit an armored vehicle outside YouTube headquarters in San Bruno, Calif. | AP

Terrified employees huddled inside, calling 911, as officers and federal agents swarmed the company's suburban campus sandwiched between two interstate freeways in the San Francisco Bay Area city of San Bruno. | AP

YouTube's headquarters has more than a thousand engineers and other employees in several buildings. | AP

YouTube employee Dianna Arnspiger said she was on the building's second floor when she heard gunshots, ran to a window and saw the shooter on a patio outside. | AP

Burlingame Chief of Police Eric Wollman, left, hands a dog named Kimba to a man who wished to remain unidentified but said he worked for YouTube, outside the company's headquarters, in San Bruno, Calif. | AP

Witnesses described terror before officers arrived and discovered a victim near a front door and then found the shooter several minutes later with what appeared to be a self-inflicted gunshot wound. | AP