All the pedantic nitpicking in the world doesn't change the fact that a long bag was discovered next to the SN. Oswald was seen that morning carrying a long bag. His prints are on that bag which is next to some boxes that also had his prints and by the very window from which fired bullet casings from his rifle are found. The police officers searching the floor - which is covered in boxes - are looking for a rifle or shooter. Not necessarily a bag. It is not necessary to reconstruct with absolute certainty who first "discovered" the bag whatever that means. It was there. It eventually came to the attention of someone while others may not have noticed it because of the extreme clutter on that floor. It may have even been moved during the search itself before it dawned on someone that it could be linked to the crime. There is also often confusion in the record about which "bag" is being discussed - the long bag or lunch bag. Witnesses use imprecise language in response to questions that are subject to subjective interpretation of their own imperfect recollection of times and events. It may be impossible to reconstruct the "discovery" of the bag with absolute certainty but that itself does nothing to undermine the conclusion that it was there, has Oswald's prints on it, resembles the long bag he carried that morning, there is no accounting for a slightly shorter bag or any other similar long bag in the building along the lines Frazier estimated, Oswald denied carrying any long bag that day because he was lying, and is found not just at "Oswald's place of work" as sometimes dishonestly characterized but the exact crime scene within the building. It has no apparent work-related purpose for being there and no one else with access to that floor ever comes forward to provide any explanation whatsoever for it to have been there. It is a peculiar bag both due to its location, size, shape, and the fact that is homemade. There are no pictures which depict any similar bags at use in the building for any work purpose. It is clearly singular and related to the crime. The notion that the DPD constructed it and then somehow confused a bag that they themselves made for a legitimate purpose to carry the rifle as evidence but then somehow forgot they did so and instead decided to lie about finding near the SN is absurd in my opinion. The absence of a time machine to sort out exactly who first discovered it with absolute certainty is just an exercise in endless pedantic futility that changes nothing.