More than 13 years after the 3 year-old vanished from a holiday apartment in Praia da Luz in Portugal, her family are still waiting for answers.What happened to the little British girl on the evening of 3 May 2007 – just days before her fourth birthday?Investigative leads over the years have so far failed in the search to find her.But in June of this year, a new suspect was identified in the case – Christian B.Who is he? And is he the man responsible for Madeleine’s disappearance?On this edition of the Sky News Daily podcast with Jonathan Samuels, we are joined by our crime correspondent Martin Brunt as we look at what we know about the suspect, his past and the evidence against him.Credits:Daily podcast team:Podcast producer - Annie JoycePodcast producer - Nicola EyersInterviews producers - Oli FosterInterviews producers - Tatiana AldersonInterviews producers - Megan CouttsArchive - Simon WindsorMusic - Steven Wheeler