The masked man was mentioned in Summers book.
As to the ineptitude of Amaral’s investigation how do we know that the information wasn’t supplied on Rebelo’s watch and even if not Rebelo was the coordinator of the investigation for longer than Amaral so why did he not use his time usefully by checking out the information?
Funny though that the people who have appeared to check masked man out are the parent’s PIs.
Indeed so ... Looking for Madeleine ... Anthony Summers & Robbyn Swan did the research to uncover and put that detail into print.
They also noted that a man had tampered with the sliding door mechanism the day before the attack took place to enable access.
In most of the incidents reported to Scotland yard there had been no forced entry and nothing had been stolen.
Does that remind you of anything?
The attacks took place between 2004 and 2010 ... so I think Amaral might have had some input to giving them consideration in relation to Madeleine had he bothered ... then he didn't find Dr Totman either.
I find it hilarious not that it took private detectives to do the job the police should have been doing.