The woman who opened fire at YouTube's offices heavily criticized the video platform online

Nasim Aghdam

Nasim Aghdam, the woman suspected of firing shots at YouTube's headquarters and wounding three people, had an active presence online.
Images and videos uploaded to Instagram and YouTube accounts allegedly connected to Aghdam contained political messages and fitness tips — but also featured some heavy criticism of YouTube.
Several of the social-media accounts — including a Facebook and Instagram account, and several YouTube channels linked to Aghdam — have been taken down.
Her father, Ismail Aghdam, told Mercury News "she was angry" at YouTube.

The female suspect in Tuesday's shooting at YouTube's headquarters appeared to have an active presence online. YouTube, Instagram, and Facebook accounts connected to the woman featured a wide range of content — from dancing to fitness tips, and commentary on veganism.

San Bruno police identified the suspected shooter as Nasim Aghdam, 39, on Tuesday night.

The woman had expressed some heavy criticism for YouTube's move to demonetize certain channels. She took issue specifically with what she believed to be a targeted reduction in viewership on her videos.

Aghdam also engaged in some political speech.

"BE AWARE! Dictatorship exists in all countries but with different tactics!," a website that appeared to be linked to Aghdam read.

Her alleged Instagram account had over 16,000 followers before it was shut down.

Nasim Aghdam

In one missive about YouTube's move to demonetize certain channels, Aghdam said: "There is no equal growth opportunity on YOUTUBE or any other video sharing site, your channel will grow if they want to!!!!!"

Aghdam, a resident of San Diego, reportedly drove from Southern California to San Bruno days before the shooting, the local news station KRON-4 reported.

She is believed to have used a handgun to shoot three people before fatally shooting herself.

A fourth person sustained injuries that were not gun-related.

Investigators earlier on Tuesday said they believed the shooting was connected to a domestic dispute between the woman and her boyfriend, who works at YouTube, a law-enforcement source told Business Insider. The source said authorities do not believe the woman was connected to international terrorism in any way.

Multiple local news outlets, including the San Jose-based Mercury News said that Aghdam had been reported missing days before the shooting. The newspaper reported that the woman's father, Ismail Aghdam, said she complained that YouTube "stopped everything" and told her family she was "angry."

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