Dusty's Big Brother (based on the book "frozen fire" by Tim Bowler)
Disclaimer: I do not own anything in this story, Tim bowler and his publishers do.
Josh is a wanderer, often leaving home for days at a time, he gets into fights more then even Dusty does. He is never actually seen in the book, only mentioned, since he disappeared a few years before the book. Even though Dusty has an over-idealized fantasy version of him, in truth it is quite possible that it was he who committed the rape, although this is not directly stated. It is implied that he committed suicide by weighing himself down and jumping of a cliff into the ocean because he could not handle the guilt. This is the story of how he met his end.