Tesla you just don't get it. The point is that the PGP are perfectly willing to accept Amanda committing the crime without one piece of credible evidence putting her in the room. If they are willing to assume she could have murdered and left nothing, it is equally possible that someone else was with Rudi.
All the "compatible Luminol" not blood positive prints mean nothing. Why limit the bath mat print to only Raf or Rudi?
Can you name one piece of evidence pointing to Amanda's presence during the murder or Raf for that matter?
I think ac might have been responding to a certain aspect of your prior post - the part highlighted below:
"...the obdurateness of both sides on the number of people needed to commit the crime and what range of suspects that might include"
And I too wanted to comment on my opinion/position on the "number of attackers" aspect. In my view, it's clear that all the available evidence (and lack of evidence) is entirely consistent with just one perpetrator - Guede. Certainly the injuries to Kercher, the method of entry and the evidence left at the scene are all wholly consistent with this Guede-as-sole-attacker scenario.
Now of course it could be the case that Guede had accomplices who either left no trace at the scene or who left traces that the "crack" Perugia/Rome crime scene team failed to find. And of course in the absence of an unimpeachable alibi, Knox and/or Sollecito could at least in theory comprise those accomplices - but by the exact same token, so could every other person within around 50 miles of Perugia who didn't have an unimpeachable alibi for the time of the murder (which would comprise a very large number of people).
But in my opinion, the nature of the crime, and the apparent lack of (credible, reliable) evidence at the scene of anyone else, leads me to be very confident that this attack and murder was carried out by Guede acting alone.
I also think that one important coda needs to be added: even if there were reliable evidence that this crime had to have been perpetrated by more than one attacker (or if there were reliable evidence that this crime was probably perpetrated by more than one), there still would be no justifiable reason to believe that Knox and/or Sollecito comprised those others - any more than there would be any justifiable reason to believe that
anyone in or near Perugia with no unimpeachable alibi comprised one of the others.
In order to believe that Knox and/or Sollecito were participants (assuming for a moment that there was reliable evidence that this crime had to have been committed by multiple attackers), one needs compelling evidence to support that belief. And since there's no credible, reliable physical evidence of Knox's/Sollecito's participation in any way, and since there's also no credible, reliable evidence that Knox or Sollecito would/could have teamed up with Guede to commit this crime, and since there's also no credible, reliable evidence to refute the claims of Knox and Sollecito to have spent the evening/night in Sollecito's apartment..... there's no more reason to suspect Knox or Sollecito of being Guede's accomplices than there would be to suspect anyone else. And on top of that, I would argue that if Guede did have accomplices, they'd far more likely to be people from within his drug-dealing and stolen-goods circles than anyone such as Knox or Sollecito.
(Of course all of the above two paras is moot IMO, since there's no reliable evidence to positively support the idea of multiple perps, and at the same time all the reliable evidence is wholly consistent with a single perp - Guede)