On the evening of 3 May 2007, Gerry and Kate McCann returned to their holiday apartment in the resort of Praia da Luz on Portugal's Algarve to every parents' worst nightmare: their daughter, three year- old Madeleine Beth McCann had vanished from her room.The first days and weeks after her disappearance saw an almost unparalleled level of media coverage, as the face of a blonde, giggly little girl...