When Kennedy Odede was a kid, he lived on the streets of a slum in Kenya.
He'd grown up in tough circumstances. His stepfather was violent. There wasn't enough food to go around. He wasn't sent to school. A friend convinced him he'd do better out on his own. He'd have his freedom, he'd be able to find his own food.
So when he was around 10, Kennedy left home. His new world was a world of violence. He was caught up in gang fights. He remembers being stabbed in the arm: "I still have the scar," he says.