Yes - it was British journalists. I thought everyone knew that.
This could be Lorri Campbell! Date of her report to the police was 6th May. So it is documented.
But is this REALLY correct, Benice?
For discover the one and only truth you may have to read Amarals book a bit more intently

In the first part of chapter 7 he describes, that he himself was THE MAN, who perceives R.Murat in the morning of 11th May as a suspicious-looking character.
After a very long and stressful night (with a lot interviews/meetings until 2'oclock in the morning plus bury his dead dog also in the same night) he drove the direct way from Olhão to PDL - to check the crime-area.
Curiously no one saw him wandering alone through the streets next to OC (for sure there weren't any reporters or officers at that time).
Suddenly he spotted a strange looking man with his mother, in front of their house.
A bit later he saw this man talking to a GNR-officer.
Apparently this guy was R. Murat.
After this "observation" Amaral immediately phoned his team to alert them about R.Murat.
However this whole story is quite strange, because R.Murat had been in Portimão that morning.
He did translation-jobs for the PJ-Inspector Pedro Varanda (DW for example).
So - what do you think about this episode?
IMO this story is rubbish - Amaral just wanted (at all cost) express his competence as a first-class investigator.
The whole description in this chapter is untrustworthy and full of pathos - from the nightly funeral of his dog (between 3-4 o'clock) till his random detection of R.Murat in the next morning. Incredible!