Who said there isn't any new evidence to be found?
Here's Oswald's sack in the Sniper's nest.
Btw I can't find the poster who originally found this groundbreaking evidence but if it was you, tell me and I will credit you!
EDIT
JohnM
Yes, I think it was me to spot it first. Thank you.
While researching on CE 142 through the photos and possible scenarios, my conclusion is that CE 142 has nothing to do with Oswald nor rifle.
The way I see folding lines on the paper suggests that it was folded for a reasonable time before unfolded and photographed at the SN and in front of the TSBD. A couple of years ago, I bought the brown paper and tried for myself. If Oswald was carrying the rifle inside CE 142 it would be crushed much more than it is. The whole surface should be crushed the same way as we see in the bottom portion of pictures in front of TSBD. Just try to imagine how would you pack the rifle and carry it inside the paper bag. Has anybody tried it ever?
The second issue are folding lines. Once Oswald took the rifle out of the bag, he did what? Folded it four-five times neatly? CE 142 has at least eight, more likely ten folding lines which suggest it was folded four times and stored. Somebody would say that these folding lines originate from the time Oswald created the sack but it is impossible. There is no chance he created the sack in TSBD, folded it, put in his pocket, took to the Ruth Peine garage, packed the rifle, handled it, took to the car, took again, carried to the TSBD, took the rifle out... And after all that, there is no way sack to have folds as we see on the photos.
What I think that happened was that while investigating and interrogating Oswald and witnesses, particularly BWF, DPD came to the question of rifle sack. BWF told that he saw Oswald was carrying a paper sack and he told about curtain rods so the officers were sent back to the TSBD to find any similar object to paper sack. There they found a folded paper bag and assumed that was the sack BWF was talking about.
CE 142 could be found anywhere inside TSBD and there is no photographic evidence to place it between the box and two pipes next to the window as it was stated by DPD officers.
Once again, due to the shape of the paper sack and the folding lines, I think it has nothing to do with Oswald and the rifle on 22/11/1963.