There have been a few of them already, mostly in Holland and Belgium I think, but why has none of them actually done anything?! This Belgian ice-cream seller seems to be sure that he had seen Madeleine with an unknown woman... If I was that guy, I would have certainly tried to find out the truth, I would have followed them or at least called the police. To me it sounds like it's just some sick person who wants to be famous for 5 minutes, I hope I'm wrong though.