The Man Who Fell to Earth

In September 2012, a man in his 20s was found dead in Portman Avenue, a suburban street in west London. He had suffered horrendous injuries to his head and face. He had no identity papers on him and no one had reported him missing.

Rob Walker follows the Metropolitan police investigation into who he was and how he arrived in Portman Avenue. It is a story that spans two continents and eight countries.