Now if he is not the lone wolf, where do Knox and Sollectio fit in? I had always thought perhaps it was Amanda who allowed him in the front door, then she took off, and Kercher came home. Then perhaps she returned. It's not an easy thing to fit in, and I do hope the evidence can be trusted......
So.... in that case Amanda and Raffaele are not present during the murder and rape, which would explain why no indication of blood was found on any of their clothing or persons; but then why would they feel any need for "cleaning up"?
I still feel there is a huge hole in the clean-up scenario - namely any evidence of rags, cloths, towels, paper, mop, sponge etc. showing traces of blood. All of the bloody towels are in Meredith's room, correct? and they don't show traces of bleach or cleaning agents or even wiping stains? Oh wait, I think the evidence of the towels was destroyed, correct?
I disagree that Amanda or Raffaele could have driven around Perugia to find a place to throw things away without being seen or caught on camera somewhere.