Why I believe George lied about seeing Casey and Caylee on 6/16:
1- No way can I believe someone (especially a man, who just don't take note of these things) can recall one month after the fact - in specific detail - what clothes each of them wore, plus what color backpacks, pony tails, etc.
2- The level of details he gave indicates lying to me - he was sitting on the sofa, watching his favorite news show (which then became Food TV, but no name for his 'favorite' show.)
3- He used the phrase "a normal day," which incidentally Casey also used in her initial interviews with LE. Sounds scripted to me.
4- His body language suggested lying to me. IIRC, he had that smile/shrug thing going on there.
His reasons for lying? I can't say for sure but perhaps he was just sticking to the story they concocted beforehand and decided to stay with it. Or as a coverup for the horrendous fight the evening before where Cindy grabbed Casey by the neck? Perhaps pertains to some other information we have not yet heard. I think there is a lot LE knows that we don't.
Not sure of the reason but I believe he didn't see them on the 16th. JMO.