NEWYou can now listen to Fox News articles! A renewed search for Madeleine McCann, an English toddler who disappeared from a family vacation to Portugal May 3, 2007, likely came from a trusted inside tip,

After a three-day search effort draws to a close without any sign of a breakthrough, crime correspondent Amy-Clare Martin reports from Praia da Luz on the latest attempt to give the McCann family answ

The initial Portuguese investigation failed to preserve the scene adequately, so the opportunity to gather forensic evidence from Madeline McCann's room at the Ocean Club was lost. Long-term residents remember joining in uncoordinated and ad-hoc searches of the town.