Why? Well, judging by the nature of these emails it would appear that there is a man - who may well be 'The Man' - walking the streets of Rio de Janeiro. Unfortunately none of these people have managed to get a photo of him. So what am I to believe? That this is a genuine offer of help from the Brazilian public or one of the greatest wind-ups in the history of this quest?
Only one way to find out I suppose. Where's my passport?