Grieving sister of trolled teenager becomes 'target of online abuse' Jo, 16, who found her sister hanged last Friday, said that since her death she has been bombarded with hateful messages, The girls" father, David, said that it "defies belief" that "sick individuals" are now targeting his Jo. Hannah became the latest teenager to take her own life after being bombarded with abusive messages on the hugely popular social networking site, ask.fm, and the tragic case has led to increased concerns over online bullying. Her father warned that if action was not taken to close down such websites, more teenagers would suffer the same fate as his daughter. The Government have said that they are working with the industry to tackle the growing problem.