If I recall properly some female witness outside a bank overheard a man she later identified as being GM pleading with someone on his mobile phone not to hurt the girl?
That was Caroline Kish. Her evidence was discounted for various reasons; she was late coming forward, Gerry McCann's phone was in Luz, Kate said he was in Luz;
One witness reported having seen Gerry in Lagos on 7 May, on his mobile phone, saying to somebody, ‘Don’t hurt Madeleine.’ At the time we were both in Praia da Luz surrounded by media, police and embassy officials – as, of course, Gerry’s phone records showed. [Madeleine]
Although Ms Kish's evidence is dated 21st November, her sighting was first reported to the PJ on 8th September.
The sighting took place at 2.26pm on 7th May. At 2pm Kate read out an appeal to Sky News with Gerry beside her. What they did after that we don't know.
We do know that Gerry had a mobile phone which the investigators had no knowledge of, so his known phone records don't count as evidence. An interesting point is Kate's appeal, which is addressed to the person 'who is with Madeleine' and says 'Please, please don't hurt her'.
http://www.mccannpjfiles.co.uk/PJ/CAROLYN-KISH.htm