And the 2012 YA Edgar went to...
...The Silence of Murder, by Dandi Daley Mackall:
I read the whole thing in one sitting, so my issues couldn't have been too problematic. I wouldn't give it to someone who's looking for an action-packed mystery, or for a particularly atmospheric one, but I'd definitely hand it to anyone looking for a YA courtroom drama. (Of which there are very few!)
See the rest of the winners and nominees at the Edgars website.