proved. >> none of which were relevant, reliable. what we are talking here is evidence. the only evidence they had was the dna evidence which now these court appointed experts have said. >> shepard: a lot of observers, they were not happy with a little american girl having what they considered to be weird sex&w in italy. >> i know that's what the claims were. i also know one guy who was convicted his dna is all over the place. >> shepard: where was amanda knox's dna on the murder weapon that may not be the murder weapon? >> correct. it is on a knife in the kitchen where she lived, presumably she was cutting a piece of proscuitto that day. honestly so. as we've known for all these cases we've covered an appeals court is reluctant to absolutely let somebody walk out when two judges and six lay people wrote a 427 page