Hello, everyone.. I know this may sound 'out there', but I wonder if anyone has ever considered that Casey and Cindy both planned to 'take George out', hence the searches on chloroform, neck breaking, household weapons, etc..... then Cindy trying to take responsibility for the searches (at least the one on 'choloroform", she said she was trying to look up 'chlorophyll') and lying for & covering up for Casey, in general. Also, Casey was going around telling all her friends that Cindy and George were getting a divorce and told one friend that George was moving out. Perhaps Casey thought with George out of the way, Cindy would allow her to move a friend in (Amy)? Also remember that Cindy was wanting to divorce George, but found out if she did, he would get half the house and she'd have to pay him spousal support. If this has already been discussed, please forgive.
edit: also, hope I'm not too off the subject of chloroform. if so, i apologize and this post of mine can be moved/deleted. thanks.