'This morning I found this bag. I had been looking for sweets. I put my hand in the bag and felt a sticky liquid on my fingers, then I looked at it. A red smear. Then I looked in the bag: bloody knives and clothes. It didn't feel good. What did it mean? I don't know. There are no answers; I daren't ask the questions'Growing up in poverty in London's East End, Kathy was eight years old when her father forced her mother into prostitution. When their mother fled, leaving Kathy and her...