Thank you for doing the same experiment 10 years after. It would have been quiet on Thursday 3 May 2007 or more witnesses would have seen the man carrying the child. It's not rocket science. If you think he was an innocent Portuguese man with his child, what evidence have you got to back this up? The Madeleine Brit lookalike was barefoot according to Peter's son.
I have reams of evidence, which would take me far too long to type. Which is why I do the tours the way I do. On Luz Tour 6, my visitor was recording me on a digital voice recorder, and he collected 8 to 10 hours of non-stop facts.
Just as an example, if you peer around the area Smithman came from, it is one of the very few areas of Luz that is typically Portuguese (as opposed to ex-pat), and the area he was most likely headed to is also typically Portuguese.
From the 'top' of Primary School St, one can see right down to the Dolphin (and vice-versa). The man could see 9 people heading towards him. He had multiple choices to avoid them. He chose to pass all 9 at close range.
Consequently he is most probably innocent, and Portuguese.
He has never been looked for in Portugal.