Actually you are incorrect Brietta. Bridget was a witness to John Hill and Matthew Oldfield's visit to their apartment around 1am on the 4th May 2007.
Bridget did not know who was at the door or their purpose ... she did not see or identify anyone ... again Jes was the witness ... but what significance do you attach to the fact the alarm was being raised after all the Moyes are on record as being similarly awoken?
SnipAt 1am there was a frantic banging on our door. Jes got up to answer. I stayed listening in the dark. I knew it was bad; it could only be bad. I heard male mumbling, then Jes's voice. "You're joking?" he said. It wasn't the words, it was the tone that made me flinch. He came back in to the room. "Gerry's daughter's been abducted," he said. "She ..." I jumped up and went to check our children. They were there.
https://www.theguardian.com/uk/2007/dec/14/ukcrime.madeleinemccannSnipWe were woken up at half past eleven at night by one of the friends of the McCanns to say 'a little girl' had 'been abducted'; those... those were the words used. So, we got dressed and joined in the search, we were out until about four in the morning with, oooh… about, I don't know, thirty people... thirty other people, maybe. The Mark Warner team were out, errm... and other guests at the Ocean Club.
http://www.gerrymccannsblogs.co.uk/Nigel/id52.htm