Habe in den PJ Files die Sichtung von dem weißen Van gefunden. Es gibt einige Bilder die den Van direkt neben der Treppe vom Aufgang zum App 5a zeigen (aus der Erinnerung). Aber auch andere Bilder die ihn mehr an der größeren Strasse zeigen. Es wird auch von einer Sichtung gesprochen: ein Mann lehnte an der Wand mit Sonnenbrille.
At that time as they passed the residential block he noticed a light commercial vehicle, (in all respects the same as an Opel Corsa Van), white in colour but dirty, with only one side window in the 'hanging' [sliding panel?] door, but not knowing the exact make, model or other identifying characteristics - including the number plate.
--- Everything considered he judged it to be an old model.
--- When going down the [Rua Martins] he passed an individual standing on his left at the beginning of a path and at the entrance of a small car park opposite the reception of the resort.
--- At the point they passed the individual the deponent had seen him face-on because he [the man] was facing the opposite direction to which he [the deponent] was walking, and appearing to be watching attentively movements [occurring] adjacent to the parked vehicle.--- Asked to justify [elaborate further] he said that the van was situated close to the gateway on the side of the building [which gateway] led to to the veranda of the apartment in question [apartment 5A].
--- Hence, one could conclude that the man was monitoring the movements next to that gate and, possibly, of the interior of the apartment.
--- For the rest, he adds that after having reflected specifically on the incidents he concluded that it was the man's deliberate focus [fixation] on the area in which the events that gave rise to the investigation occurred.
https://www.mccannpjfiles.co.uk/PJ/DEREK_FLACK.htm