YouTube star Mikayla Raines has died after being 'relentlessly bullied' in a targeted online campaign.

Her husband Ethan confirmed her death Monday by suicide in a heartbreaking Instagram post.

'They spread false rumors, and being the sensitive person she was, it deeply affected her,' he told her followers.

'She tried for years to push through the pain, but this time it was too much.'

Raines, 29, had been battling a myriad of health conditions including depression, borderline personality disorder, autism and more.