Corrected entry: When the killer stabs a newspaper picture of Harry, the rubber knife blade bends.
Corrected entry: After Rook kills the cameraman and goes after the reporter, when she is sitting in his chair, you see that his knife is now clean.
Correction: Rook could have cleaned his knife at any time after killing the cameraman.
Correction: It's not a rubber knife. It's a boning knife, which is designed to be flexible. When the killer is slicing the newspaper with the knife, he puts so much pressure on the knife that the blade bends as it should (although most rubber knives aren't sharp enough to slice up newspaper as he does).
Bishop73