Casey's demeanor, although shocking and inhumane in relation to her daughter's death, is also, probably because she is scared to death of the people behind the child pimping. Who knows what they might have threatened...killing her parents, brother, friends, etc. if she mentiones her involvement with them. And, of course, having her own name exposed in relationship to such horrid practices. That is probably more important to her than anything...just having people know the truth about how she used her daughter in such a disgusting, immoral way just to make money is something she does not want told.
Too much conspiratorial thinking for me from Wendy Murphy.
Too much solid circumstantial evidence to make it the complicated psycho circus. Keeping it simple is tried and true.