Amanda testified there was no blood on the floor.
All of that is possible.
Husband comes home in middle of this and to this day, years later, doesn't recall the second ambulance or the firetruck. I am able to recall the firetruck and an ambulance but not the second one (I was focused).
All too often perceived discrepancies are seen as indication of deceit or deception when in fact it is usually the result of a faulty or distracted memory, focused mind (tunnel vision), or poor language. And, it must be pointed out that perfect recall is viewed as indication of guilt.
So, discrepancies in memory indicate something amiss and no discrepancies indicate guilt because no one has a perfect memory.
Which brings me to your observation that she said there was no blood on the floor, then how then can it be “Two luminol-enhanced footprints presumably made by Knox in Kerchers blood in the hallway outside her bedroom.” . . .”One of the footprints was in a size 37. Knox's shoes were all size 37 or 38.
Blood on the floor and she didn't notice? Quite possible.
Interesting.
Did she do it?
Don't know. However, I do know the Italian justice system is questionable at best and in this case, very questionable.
Oh, last point, she is being interrogated for over 30-hrs, in a language that she is not a native speaker, possibly switching between English and Italian (both her and the interrogators—and they are not native English speakers), so yes, transcription errors, translation errors, misunderstanding, etc. . .and foggy memory are quite understandable and easily account for perceived lies or deceptions.
Cheers.