WARNING: This story contains material that may be confronting for some viewers. Ask any parent of a teenager – getting their child off social media is near on impossible. Of course, being connected to the online world does have advantages, but all too often, alongside the good lurks the bad. And for 15-year-old Tilly Rosewarne it was very bad. The cyber bullying she endured felt merciless. Her mum and dad, Emma and Murray, tried hard to stop it, but still couldn’t save their precious daughter who suicided in February. Now though they want to warn others – unsuspecting parents and vulnerable teenagers – about the dangers of popular social media apps like Snapchat. If this story has raised issues and you need to speak with someone, call Lifeline on 13 11 14 or the Kids Helpline on 1800 55 1800.