A billionaire found his missing wife's watch on a homeless girl in an alley… But when she whispered his son's name, his trusted advisor appeared with a gun. They called me "The King of Concrete"—Arthur Penhaligon, the man who owned half of London's skyline. Fifty stories above the street, the city's elite toasted my 50th birthday with champagne that cost more than most people's cars. I smiled. I shook hands. I pretended not to feel the hollow ache that had consumed me for five years. Five years

29K views · 66 reactions | The YMCA North London is supposed to house and help young people who would otherwise be homeless. But is it failing those in its care? Watch the full BBC Stories invesigation: https://bbc.in/2x9UjpV | BBC London | Facebook