EXCLUSIVE The tragic family secret linked to a young girl taking her own life - and the revelation which triggered the bullying that drove her to her grave Charlotte O'Brien, 12, took her own life She was being bullied at school For confidential support call Lifeline 13 11 14 or Kids Helpline 1800 55 1800 By Tita Smith and Stephen Gibbs for Daily Mail Australia Published: 04:20 BST, 18 September 2024 | Updated: 04:42 BST, 18 September 2024 e-mail View comments EXCLUSIVE The estranged father of a 12-year-old girl who took her own life after allegedly being bullied at a Sydney private school was released from prison about 18 months ago after serving more than seven years for a violent crime . Charlotte O'Brien had recently learned of her biological father’s criminal past and told fellow students at Santa Sabina College at Strathfield about what he had done. Daily Mail Australia has chosen not to publish details about those offences.

Charlotte's mother Kelly claims staff at Santa Sabina were aware her daughter was being harassed by other Year 7 girls before she took her own life on September 9. Emails released by Kelly on Wednesday show she had been in frequent contact with staff members about Charlotte's bullying and mental health for two years before the tragedy. In one email, sent in August 2022, Kelly said she was shattered to learn that Charlotte had told friends about her father's past after looking him up on Google .

'I was devastated to hear what she said to her friend.