I'm sure it would have been passed off as them being mistaken.
Is that not what is being said of the couple on their balcony who said they did not see Gerry & Jez?
Is this what you are referring too? They didn't see anyone.
They walked past apartment 5a but noticed nothing untoward. The woman said in her statement: “I stood on the balcony at about 9.15 with a whisky.
“I saw people eating at the tapas bar and children in the play area. We went to bed at 10pm-ish. We were woken up by our bell ringing at 11.30pm. It was a friend of the McCanns, saying that a little girl had been abducted. The friend asked if we had a computer so they could get the media involved in the search.
The couple are key because at precisely 9.15pm on May 3, Jane Tanner, a friend of the McCanns, said she left the tapas bar and walked past Gerry, who was talking to holidaymaker Jez Wilkins outside apartment 5a.
At the time she had not realised the significance. Officers asked the couple if they saw Jane, Gerry or Jez but they insist they did not.
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http://www.express.co.uk/news/uk/400796/Mystery-couple-seen-going-into-McCanns-flat-on-night-before-sobbing-Madeleine-disappearedHowever it has been established, that Gerry and Jez were there, so they seem to be a bit out with their timing, too.