I loved this.
The conversation between Barbra and Cass went just as it should have and I loved Cass's reflections on being akiller and being like Batman though I felt sorry fot her as well.

Wonderful. I love how you did Cass's insight into why she wears the mask when it's so different from everyone else's. For some reason I thought Bruce was aware she had killed but I may just be crazy.

Who is Cassrandra? And whom did she kill?

Great story! Love the Cass/Babs friendship

Great insight into Cassandra's state of mind, you nailed her character perfectly here. Great stuff.