First, why did not the prosecution bring this up. Second, how does one use a lamp to clean-up two sets of forensics and leave a third?
It's very hard to take you seriously when this sort of stuff is posted.
Knox isn't a bright girl as her written statement clearly demonstrates so looking for logic in everything she did is silly.
it's probable their cleanup effort was interrupted by the unexpected arrival of the postal police. they had some real bad luck in that regard b/c they threw the phones into some woods in what they thought was an isolated area but a gardner happened to hear them ringing the next morning.
the prosecution did bring up the lamp, have you read the trial transcript? they asked her about it and she said she didn't notice it was removed from her room. you can say the massei report didn't talk about it but those reports don't cover every single bit of evidence put forth to the jury. you have no explanation for the lamp being in the room, or why Guede would have put it in there prior to the murder. the simple explanation is knox used her lamp in a clean up effort after the murder.