Wow, I don't know what to think. Part of me says that she was right (and very brave) to end his suffering. And if that could be proven beyond a doubt (which I don't think can be done), then I hope she is let off easy, because I am a supporter of assisted suicide. I see no reason why something that is looked at as admirable if done to animals should be considered criminal if done to people. But then another part of me thinks that she could have made up the story, and murdered him. Since there was no letter, and no one else lived with them apparently, her word is really all they have to go on. It's unlikely, but stranger things have happened. Never heard of anything like this.
http://www.msnbc.msn.com/id/7189078/?GT1=6305