The judge did not state that RS could have avoided punishment if he had pinned it on Amanda. That is misleading and a complete misrepresentation.
He did say that RS chose not to speak, which was his right, but that by not doing so, it deprived the process of a voice. Of course, in any case, more information can be learned if the defendant chooses to testify. That is true of any case anywhere. However, in many cases the defendant does not choose to testify, and that is their right.
http://www.boston.com/news/world/eu...tended-flee/cIpsjZSSY5uiKLpNJkJB6J/story.html
But on a separate note, do you not agree that there was more evidence found against Amanda than against RS? That is just the facts in the case. Amanda had more forensic evidence found against her. And she also would have been the only one out of the 3 who could have given access to the cottage, since she was the one who lived there.