Either Ms Knox is guilty - in which case she is a criminal evading justice, or she is innocent, in which she is being wrongly pilloried and demonised.
Which ever it is, as an adult involved in a serious crominal investigation, I think the gravity of the situation, plus common manners, means that she should be referred to in the media as 'Amanda Knox', or 'Ms. Knox', but not the apparently self-added soubriet of 'Foxy Knoxy' - which the Daily Mail (not seen any other front pages yet today) used as its headline today.
Trivialising either an innocent woman, or a convicted criminal is tacky and degrading, and so-called 'serious' newspapers should know better.