"All of this was done to channel suspicions on a stranger, and divert them from those who had the apartment keys," Mignini said.
Dalla Vedova said Mignini's summation "was very evocative, but you need proof to convict someone."
He said he would have expected a "greater supporting evidence by the prosecutor as far as the motive is concerned, the murder weapon and the presence of Amanda in the room, things that are absolutely full of holes. All this makes us confident regarding the verdict."
Lawyers for Knox and Sollecito will make their summations on Dec. 1 and 2. A verdict is expected around Dec. 4.
If convicted, Knox, who has already spent more than two years in a jail cell, could be sentenced to life in an Italian prison.
If the worst happens, Mellas said, "We keep fighting. Any parent will tell you you don't leave an innocent child in a foreign jail. We'll go through appeals, we won't stop until she's freed."