The fact is.... Nobody can verify with 100% certainty that the shells in the archives are the exact same shells that were allegedly picked up at the scene...
The fact is.... Nobody has proved that the shells in evidence were NOT the shells collected at the scene. It is one thing to As I was walking a' alane, I heard twa corbies makin' a mane. The tane untae the tither did say, Whaur sail we gang and dine the day, O. Whaur sail we gang and dine the day? It's in ahint yon auld fail dyke I wot there lies a new slain knight; And naebody kens that he lies there But his hawk and his hound, and his lady fair, O. But his hawk and his hound, and his lady fair. His hound is to the hunting gane His hawk to fetch the wild-fowl hame, His lady ta'en anither mate, So we may mak' our dinner swate, O. So we may mak' our dinner swate. Ye'll sit on his white hause-bane, And I'll pike oot his bonny blue e'en Wi' ae lock o' his gowden hair We'll theek oor nest when it grows bare, O. We'll theek oor nest when it grows bare. There's mony a ane for him maks mane But nane sail ken whaur he is gane O'er his white banes when they are bare The wind sail blaw for evermair, O. The wind sail blaw for evermair.' and moan about what you believe to be a lack of validity of the evidence; any kook can do that. It is another thing entirely to actually do something about it by proving that the shells are not authentic.