(a supposed handprint of Knox's on a pillow in Kercher's room) is an outright falsehood -- as you will see from following Nelson's link, it's not even (close to) what that article claims.

Did you misread the source?

I said:

"One of Amanda's bloody footprints was found inside the murder room, on a pillow hidden under Meredith's body."

The source I cited (http://abcnews.go.com/TheLaw/International/story?id=7538538&page=2) said:

"Guede's bloody shoeprint was also positively identified on a pillow found under the victim's body... Police also found the trace of a smaller shoe print on the pillow compatible with shoe sizes 6–8. The print did not, however, match any of the shoes belonging to Knox or Kercher that were found in the house. Knox wears a size 7, Rinaldi said."

Anyway, a debate sounds like a fun use of free time; I replied to the comment you indicated: http://lesswrong.com/lw/1j7/the_amanda_knox_test_how_an_hour_on_the_internet/1gdo