In their summary of the case on Reddit, the poster 'Eugene' - who shared the recent photos and case files - says there were TWO copies of The Daily World found in the room. Did you already known this? Perhaps it's written somewhere in the case files, and I missed it - apologies if it's already been mentioned somewhere.
This is the issue dated Sunday, September 16, 2001. One copy was found in the trash can, and a second on the bed. Pure conjecture of course, but you would normally purchase two copies of the same publication if there was something significant in there.
Do you think it would be possible to order a back issue of this edition from the publisher for a small fee? CCM already checked it at the time I know, but there could be something in there that might be relevant. It's all very tenuous I know, and it's an avenue already explored by CCM, but two copies just seems... odd.
Failing that, are there any locals in here who are familiar with The Daily World Sunday? I know Sunday editions usually have a retrospective of the previous week's news, so it would have been 9/11-heavy. CCM mentioned about a crossword (which wasn't completed), so there were other features in there too, even during the most significant news week of the 21st century. Do they have certain features on a Sunday? Classifieds? Obituaries?