I'm sure this isn't significant, but it stands out to me. There were two separate transcripts that I read, where Casey was unable to make a purchase, as she had no ID 'with her'. I recall that both of the places where there was an attempted purchase were either a distributor, or liquor store, I'm not sure what Florida's alcohol purchasing set up is (I'm in PA and we have separate establishments for the purchase of "soft liquor" and "hard liquor." So I don't know exactly what the establishments were, but I think that one transcript stated that it was to buy a bucket for a keg, and another to actually buy alcohol at another establishment. (Sorry if this doesn't make sense.)
I recall reading that at the house where there was to be a birthday party, they, they being Amy and Casey, went to get an item, either a bucket or something and she, Casey, couldn't purchase it because she didn't have her ID. Also, there was another occasion where she went to buy something and didn't have her ID with her.
Yet when she was using Amy's checkbook (or a few stolen checks) she was able to produce ID, each and every time. Also, Lee stated in his inteview that when he brought back Casey's belongings from TL's apt., when they dumped everything out, the officer, who had left the room, according to Lee, Cindy had pocketed money and a JCP CC, but he stated that when they went to pull white card out of her wallet, the officer stopped them, and took possession of the card. (which I guessed was an ID of some sort)
Again, I'm sure it's nothing, as Casey is one of the biggest liars on the planet, but that stood out for me.
She wouldn't produce ID with others around, but she would when she was alone.