Now, pray tell, how do you know km didn't open the window and played with the shutters ?
Jane Tanner claimed she saw a man in the twilight.
How good is your vision in those conditions ?
By all accounts, the Mccanns and associates trampled the apartment, so don't blame the local police.
Put the blame for what happened solely where it belongs, the Mccanns.
Thanks to John excellent images in the thread "sadies theory"
We can see Jane Tanners route (green arrow) immediately prior to her seeing bundleman. Also, if we look carefully, we can see a foreshortened lamp post, which closely illuminated bundlemans body and possibly some of his face. Also illuminated ?Madeleine.
See the green dots? Well the lampost is immediately below and between the two RH green dots ... seen from above so extremely foreshortened.. On the corner of the pavement and shining straight onto bundleman and Madeleine, as he crossed the road

Another image of it, but taken looking from the north in a southerly direction., so it is sort of opposite to the GE map above.
The lampost is almost at the left of the image and immediately to the left of the bushy tree.. You may have to magnify this image to see the lampost.

Bundleman, presumably expecting a get-away driver and pick up on Jane Tanner corner, left OC via the car park entrance (centre foreground) and walked to the left (easterly direction). Jane Tanner came up the road from the right. Upon seeing Jane Tanner, Bundleman carried on walking straight across the road in front of him. He was well illuminated all the way.
Jane, as a woman on her own after dark, would have been watching him like a hawk
The lighting would have been pretty good Stephen