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

Screenshot via nasimesabz.com

A screenshot of a website promoted by an Instagram account that appeared to belong to Nasim Aghdam.

• The female suspect in the shooting at YouTube's headquarters appeared to be social media presence.
• Images and videos uploaded to Instagram and YouTube accounts allegedly connected to a woman by the same name contained political messages and fitness tips - but also featured some heavy criticism of YouTube.
• Several of the social media accounts were taken down.

The female suspect in the YouTube shooting on Tuesday 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.

Law-enforcement officials identified the suspected shooter as Nasim Aghdam 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 reduction in viewership on her videos.

Aghdam, who is believed to have been in her late 30s, 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 her Instagram page said.

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

Screenshot via Nasimesabz.com

In one missive about YouTube demonetization, 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 reportedly drove from Southern California to San Bruno, 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.

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."