Police said on Wednesday that an Iranian-born woman who opened fire on Youtube’s headquarters in San Bruno, California had done so because she was angry at the company over it’s “policies and practices,” which she said were preventing her Youtube channel from getting views.

A woman opened fire on Tuesday at Youtube's headquarters in San Bruno, California, wounding three people before killing herself.

Police in California named the shooter as Nasim Najafi Aghdam, 39, a resident of San Diego, California. According to Reuters, in a video she posted to Youtube before the attack, Aghdam, who frequently posted about animal rights and veganism, accused Youtube of discriminating against her and filtering her videos.

San Bruno police chief Ed Barberini said that Aghdam was “upset with the policies and practices of Youtube.”

“This appears to be the motive for this incident,” he told reporters at a press conference on Wednesday.

He also said that the shooter did not have any relation to those she had shot, and that she had visited a local gun range the morning of the attack.