McCanns and Portugese staff

[Le Chat]

As we all know, there has been massive dabate and speculation regarding the ins and outs of the McCann case. One aspect that I have not seen though (unless I'm mistaken) is a resume of all the staff at the Warner Ocean Club Apartments. If it wasn't just an 'opportunist' abduction, then surely the staff knew the comings and goings of the McCanns? From what I've read they were pretty predictable and regimented in their daily persuits. Have the staff all been fully investigated in this case? Seems obvious to me but I can't recall it ever being mentioned!