Board Thread:Theories Discussion/@comment-113.162.193.237-20130405235740/@comment-6416957-20130406041257

It is confirmed that Ney in disguise killed Michaela. The fanmade PV has made everyone (Who have only watched Servant/Daughter of evil) certain that Allen killed her. I think the pages related to Michaelas death say that Ney was the murderer

http://wiegenlied-of-green.tumblr.com/post/42843510180/chapter-3-section-2-scene-10

Here´s the chapter itself in Michaelas perspective. I recommend you start from the first chapter/section though, it gives good information about the series.