The Info on the link to truejustice says
"?But perhaps more damning even than the knife was Stefanoni?s testimony that a mix of Knox?s DNA and Kercher?s blood was found on the floor in the bedroom of a third roommate, Filomena Romanelli."
and
"That is FOUR different blood samples with mixed Knox-Kercher DNA. Yes, it does seem that the investigative methods were sloppy and not all samples may be reliable "
What you have to take into account is that as the two girls lived together and shared the one bathroom it is not unusual that traces of meredith's blood would have Knox's DNA mixed in with it.
Did this blood have any traces of Guede's DNA in it I wonder?
Also in that same article the writer switches from talking about Meredith's blood being mixed with Amanda's DNA to
"But I have yet to read even one article where a reputable DNA expert can explain why sloppy police procedures would result in four separate mixed blood samples...
why her blood was in the bedroom of Filomena Romanelli (another of her roommates) or why her blood was found mixed with Meredith?s - or why her blood would be recoverable from an area that had been cleaned after the murder to eliminate evidence. "
which seems to suggest that Knox's blood was found mixed in with Meredith's. This is certainly not the case. DNA does not = Blood.
Also - when writing about the evidence from a 'witness' who heard screams and running from the scene the Truejustice site says
" The neighbor was 69 and could not remember exactly the date she heard the screaming, but she was firm that it was the night before Meredith?s murder was discovered."
which seems rather contradictory. She couldn't remember the date but could remember the day? All of this 'evidence' is circumstantial and can't be verified as being anything to do with the murder really. It is weak 'evidence'.
It seems to me that whoever has written those articles on the true justice site is theorising as much as anyone else is about what might have happened.
Again - I would have thought, having got a guilty verdict, they would be better to stick to the facts presented at court.