Kevin,
Thanks for your reply and expanding on your doubts about the case. There are some points you make which I think need a response.
The fact remains that AK and RS lied about not being at the crime scene and about attempting to clean up and alter the scene, why?
You call this a "fact", but I don't think it is: these "lies" were either wholly invented by the Perugia police or resulted from them tricking the 2 into "explaining" so-called evidence that they (the police) falsely claimed to possess. If you disagree, then please give specific details of the "lies", confirmed by sources independent of the Perugia police.
Remember: this is a rogue police force. If you don't accept this, then you need to ask, and find answers, to equivalent questions about their behaviour to those you are now asking about Amanda and Raffaele's alleged "lies".
If niether was involved in the actual murder, why protect RG?
Sorry, this one is obvious with a little reflection. Since they weren't involved, they had no knowledge that Guede was the real killer. The question doesn't arise - except as an example of the sort of presumption of guilt that runs through much of the comment on this case.
A point worth making is that innocent people are a much easier target than real criminals, for police determined to reach a quick "solution" to a crime. Innocent people are naive and trusting; criminals are hard nuts, on their guard, and invariably nowhere near the scene.
and why didn't RS testify?.
There could be many reasons. We don't know the answer, because the police interviewed the 2 of them illegally, without making recordings or ensuring other safeguards for their rights.
AK blaming Patrick for the murder makes sense if RG had threaten her,
Again - this allegation against Amanda, that she "accused" Patrick Lumumba, arises solely from the illegal all-night interrogation she suffered, after which she signed a statement around 5.30am. This has all the signs of a coerced statement - apart from the oppressive circumstances, it was obtained without safeguards against abuse.
After following the case for over 2 years the only question that really remains for me is whether AK actually entered the room and stabbed MK.
Please read the discussions in this forum and you will quickly find other questions. Unlike most of the blogs, which are full of personal attacks, this has the advantage of being moderated.
I don't think anyone here will disagree with that.