The story of junkrat

This is just a fan fiction about how an overwatch character gets his name and how he became this kind of villain. it takes place in a state called Australia. Some robots called omnics. The omnics are very bad robots that want's to take over the world and try's to destroy everything and everyone. The omnics sent off a big explosion witch sent toxic fumes all throughout Australia. The toxic make's people go crazy, and whoever has been exposed by it, they call themselves the Junkers, there in Australia it's kill or be killed.