The woman behind Tuesday’s shooting at YouTube headquarters is a vegan bodybuilder who used the video-sharing website regularly in years past — and once posted a clip claiming her content was being “discriminated and filtered,” a report says.

Nasim Aghdam, 39, of Southern California, is said to be the deceased suspect, according to NBC Bay Area’s Investigative team.

She apparently had her own YouTube channel — under the name “Nasim Wonder 1” — which she used to promote her healthy living style and hatred for animal abuse.

Aghdam also let her voice be heard on Instagram, where she posted photos and videos on a weekly basis.

“What do you think about freedom of speech and does it really exist in western countries!?” she captioned one video, posted on March 25.

The issue of free speech was apparently very important to Aghdam — and one she spoke about constantly while criticizing YouTube, NBC reports.

“Be aware,” she wrote in a post from 2017, which was reportedly published on her personal webpage.

“There is no free speech in real world and you will be suppressed for telling the truth that is not supported by the system,” Aghdam said. “Videos of targeted users are filtered and merely relegated, so that people can hardly see their videos.”

Aghdam even went so far as to quote Adolf Hitler, saying: “Make the lie big, make it simple, keep saying it, and eventually they will believe it,” according to NBC.

Most of the woman’s content is bizarre and includes composite images and edited videos that she appears to have created herself.

One pic shows Aghdam standing alongside a male lion — while wearing an elegant ball gown. Others show her donning traditional Muslim garb.

On YouTube, Aghdam claimed to be a “strong Persian girl” with Iranian ties.

Her boyfriend is reportedly one of the people who was shot Tuesday at the company’s headquarters in San Bruno, Cali., along with two women. The victims all worked there.

Armed with a 9mm handgun, Aghdam reportedly drove to the building from her home in Southern California. Authorities said her last known residence was in the San Diego area.

Sources told NBC that Aghdam went by many different aliases.

She has been posting videos on YouTube since 2011, the sources said.

Her most recent post came three weeks ago and was titled “Leg Exercises At Home Fitness.”

The video in which Aghdam complains about her content being “discriminated and filtered on YouTube” was posted in January 2017.

In others, she gives workout tutorials — using the term “Vegan Fitness Bodybuilding.”

The clips have since been scrubbed and her account has been deleted. The Instagram page purportedly belonging to Aghdam was also taken down on Tuesday night, as well.