It's confusing, I'm confused too, possibly... I thought you were asking for the PCA for PA (page 9 of that PDF), but you're looking for the list of items collected based on the search warrant(s), I think, that's in 4 different places, since there were 4 different search warrants for PA (1) items from his parent's house at the time he was arrested, (2) items collected from his parent's house after his arrest, (3) items collected from his car after his arrest, (4) items collected from his person after his arrest in jail. Here are where the lists are, AFAIK:
(1) Arrest items: The handwritten page (of 9 items) on page 4 in the PA PCA document linked above.
(2) Parent's house items: The handwritten 4 page list of items from the post-arrest search of his parent's house linked above. I haven't looked at every word and the handwriting is hard to read, so I don't know if a sheath is mentioned on that list of items.
(3) Car items: This is the search warrant for his car that should have the list of items taken from his car, but I haven't read it:
READ: Search warrant for Bryan Kohberger's car
(4) His person (body): I doubt the search of his person (in jail) will be published, but the Assistant DA Mancuso said at the press conference after his arrest, that that search warrant was for taking photographs of his person and samples from him (e.g., DNA).
To answer your questions, until I read through (2) and (3) (which I haven't), I couldn't say whether there was a knife sheath from searches in PA.
I don't know about the possibility that there is another sealed/confidential search warrant with a knife sheath listed that is not publicly available that went directly to the Grand Jury in secret, and that is the knife sheath there has been discussion about being removed from the list.
MOO