See the Crimewatch map in the Sun article
http://www.thesun.co.uk/sol/homepage/news/7113465/Revealed-Brit-cops-know-who-snatched-Maddieand-think-they-have-questioned-him-already.html
Number 5 is where two men were having a loud discussion in the street at about 11pm.
Rua 1 Maio is the north-south road which number 5 is on.
Who saw them?
Russell and Dave met up near there at one point;
And then, and then found my way out of the, the Shopping Centre and actually came out at the other end from where, well a different entrance, I didn’t come out the same way I don’t think, erm, and, erm, it was actually on the road that comes down in front of the Baptista Supermarket. I don’t know whether I searched a little bit more around there, but not long thereafter I met Dave coming down the road in front of the Supermarket, erm, just looking terrible, just pale, erm, you know, sort of, you know, sort of fear in his eyes, saying, you know, ‘This is’, erm, ‘This is really bad. This is bad’, you know, ‘No-one’s found her. No-one’s found her’. Erm, and I don’t know what happened at this point particularly,
http://www.mccannpjfiles.co.uk/PJ/RUSSELL-OBRIEN_ROGATORY.htm