I can't be sad that she's dead either. In fact, any mourning that I do is because people like her exist in the first place.
In the 1980s I read a book called "The Beautiful Side of Evil" by Johanna Michaelsen. (I just checked Amazon and it's still in print! http://www.amazon.com/exec/obidos/ISBN=0890813221/lazy-20 In fact, the first review on the Amazon site convinces me how correct the author is. If I recall correctly, the book is primarily about how drugs and/or alcohol shut the Holy Spirit out of the author's life and left her wide open for what she says is akin to denomic possession. I don't pretend to know all of the reasons why evil exists in the world, but I know enough to know that it isn't "God's fault." When someone's choice is to reject God, their perceptions change and they can get sucked into all sorts of distortions. IOW, unless they get it, they don't get it. How else can you allow for the complete lack of logic in some people's lives? The lack that causes them to lose sight of "the first against the wall" concept. And causes them to see evil as good, and vice versa.)
Is that written specifically for women? My youngest grappled with just how evil people can be after his time in Afghanistan.