San Bruno Police Department has confirmed the woman who opened fire on employees at YouTube's San Bruno headquarters was "upset with policies and practices of YouTube."
39-year-old San Diego resident Nasim Najafi Aghdam entered the YouTube facility on Tuesday and shot three employees with a semi-automatic handgun before taking her own life.
The self-proclaimed animal activist was reportedly upset with YouTube removing her videos from the streaming site in 2017. In a video on her YouTube channel, she claimed the company was blocking her content from viewers.
"My old videos hardly get views and my old videos, that used to get many views, stopped getting views," she said. "This is because I am being filtered."