question is there a reason why eden decided to kill rachel or is she just insane and decided to do it and kill her
I sorta answered this earlier but in Eden's mind Rachel was a loose end that needed tying up.
The circumstances were too good to pass up, and by pushing her she was able to get rid of a liability in such a way that it would be ruled a suicide.
a liability to what every thing was confusing it wwas good tho
