There is one reason why AK keeps forgetting the phonecall and then places it much earlier and that is because she made it in her room with the postal police in the house.
Postal police testified they arrived at about 12:35 (looked at his watch)
Filomena's bf testified that he arrived about 10 minutes before the girls and saw AK and RS going into her room
Filomena's friend testified she arrived at about 1pm and saw AK coming out of her room.
That fits with the 5-10 minutes needed to make those phonecalls in AK's bedroom.
So to the surprise of her mother she has no memory of her call, then even after her mother reminded her, she keeps forgetting that call in court, then even after the prosecutor reminded her she keeps pretending that phone call never happened, and the judge has to intervene.
Still that phonecall would be ok, if not for the 2 phonecalls to the police that followed. Those are really strange with the police in the house. So what does she do in her book? Put it at 12. Safely before the postal police arrived. Problem solved. JMO.
http://themurderofmeredithkercher.c...alled_112_after_the_Postal_Police_had_arrived