Luke Culhane fought back against abusive messages and social media posts in a brave way - by appearing in his own powerful video, which went viral.

In the video, Luke made a reference to a statistics that says 100 percent of teenagers say yes to at least one of these questions: a) Have you ever cyber-bullied someone? b) Have you ever been cyber bullied? c) Have you ever witnessed cyber bullying?

Luke thinks everybody has a part to play in stopping cyber bullying, and urged all to play their roles.