There is a map in the NE book showing pics of the basement, if correct, I can now see why this window could have been overlooked. First there is NO window in the train room, while looking I thought WHAT? But yep, according to this pic of the layout, the train room is entered from the hall,then divided off by a narrow and short little hall that leads into the "storage" room, this room is horrible with nasty piping. (likely dripping with lead paint chips and asbestos)(grabbed that pic after finding the room on the map ..went to candy rose) It is in this "storage room" that the window with the double doors is and where the suitcase was found. Interestingly, while hunting around I saw a pic of a window ,a one piece one that is not the window with the grate. The broken window, had several panes, only one of which was broken ,and broken just enough to reach in and open the lock. The Ramseys were careless people, certainly not concerned with security, as the other window, the one piece one was opened ,as well, with no evidence of screening. They must have had rodents, it's really odd how they made their living area so nice and were so careless and "sloppy" with that basement.