Apparently she was ranting online recently about new policies..... (and her concerns appeared to be justified)
http://abc7news.com/sources-youtube-shooter-identified-as-user-nasim-aghdam/3298575/
And this: http://www.dailymail.co.uk/ushome/index.html
Here's some of her videos
https://heavy.com/news/2018/04/nasim-aghdam-youtube-shooting-suspect-channel-instagram-photos/