It's certainly an important piece of the puzzle, if true. Can you tell us where you read this?
Mr. Walkers job was to remove/ or have these casings removed and replaced with 'serbian' casings (always having the fall back argument that the ammunition was bought from corrupt Serb soldiers); hence the questions about the contradictory statement regarding the casings...
This is particularly interesting, considering the disapearing/reappearing casings, and the curious experience of the French reporters with the phantom "American Army" guy who claimed that he gathered all of them up, and the odd lone report of ammo boxes labeled in Cyrillic near the gully.
If, indeed, it has been determined these men were killed by Chinese AK-47s, it still doesn't prove who is responsible for the deaths of these people. As I said before, Serb police had been confiscating weapons and ammo from KLA for some time (and on that day, as well), so it's possible they used confiscated weapons to kill those folks. How probable it is that Serb police would have been using these weapons, I don't know. Also, it's possible the Serb police were using these 23 men as human shields -- and while, yes, they were shot down by KLA guns, the Serb police bear the main responsibility for their demise.
It's too bad they wouldn't allow the court into Racak for the re-enactment. That might have shed some light on what really happened.
VRN