Looks to me like she was always a bit 'out there' – possibly even in productively creative ways! – and wanted to be an avant-garde YouTube star. But, because o

Looks to me like she was always a bit 'out there' – possibly even in productively creative ways! – and wanted to be an avant-garde YouTube star. But, because of her own limits in finding an audience (or tuning herself to an audience), or simply never having a lucky lightning-strike of fame, she didn't get the attention and wealth she wanted, and simmered with resentments. Some background mental disorder(s) flared up – maybe due to some recent personal relationship or financial crisis, or drug/medication issues – causing a larger delusional/paranoid break from reality and civilized behavior. (Though, it may come out that she'd had other less-violent breaks in the past.) Her known behavior before the violence doesn't strike me as that different from lots of other histrionic online personalities, or righteous ranters (either on mass media or in online niches), many with gigantic followings.