Britain's top criminologist Professor David Wilson has studied the abduction of three year old Madeleine McCann for more than a decade and now, 18 years later since her vanishing from her bed by the Portuguese seaside, he says it's time to end the police search.The Met police still have a team of three working away funded by the taxpayer whilst the most likely suspect, Christian Bruckner could be released from jail later this year for an unrelated crime only to disappear for ever.Professor Wilson believes Christian B is the killer and new evidence unearthed by The Sun this month only strengthens that belief. This is a cracking discussion with Martin Frizell who first alerted the world to Madeleine's disappearance and the Prof who says he knows what happened to her - the only mystery is whoddunnit? And he knows that too!