In September 2012, a British Iraqi family and a local cyclist were killed in the French Alps. The family's two children miraculously survived and are the only witnesses to the brutal murders. A year later, the crime remains unsolved. See behind the headlines using drama reconstruction and exclusive access to prosecutors and key individuals to trace the major steps of the investigation.

In September 2012, a British Iraqi family and a local cyclist were killed in the French Alps. The family's two children miraculously survived and are the only witnesses to the brutal murders. A year later, the crime remains unsolved. See behind the headlines using drama reconstruction and exclusive access to prosecutors and key individuals to trace the major steps of the investigation.