I'm not a big believer in the "Lee is dad of Caylee" theory, however as this case has gone on I've thought of a few things. It seems to me that around the time Casey got pregnant, the whole family sort of exploded. Mom and Dad both filed for divorce. Dad moved to Ft. Meyers to live with his parents. Lee moved out for his job - but really soon was living a few blocks from Mom and Casey.
Casey and Cindy had the house to themselves for some time there, right? Apparently the Mother-Daughter bonding didn't go so well because Casey was angry that Cindy got to hold the baby first (still is angry about that...)
I read here on WS (but can't remember where) that before this latest family crisis, Lee wouldn't stay in the Anthony house if his Dad was there - would only visit Cindy and Casey but would leave if George arrived.
Now, I'm a skeptic but, if Casey didn't tell anyone about that pregnancy until her seventh or eighth month, she was not happy about it and I believe had no intention of keeping the baby. Maybe thinking she would toss it in a dumpster right after birth.(?) She was found out an in a very short time the family just disintegrated. Perhaps it was revealed that Lee was the dad and George couldn't take it so he left and Lee was in big trouble so he left.
That left Cindy and Casey with a couple of months to hastily throw together a nursery for the baby, etc. in the house by themselves. After a little while, money was tight and George came back to help out but became very distant, working the evening shift so he wasn't around much and Lee kept a low profile - avoiding his dad.
I can see the dynamics fitting a family that just discovered incest going on. Lee was eager to prove himself as a family supporter when Caylee went missing, but as soon as it looked like murder, he vanished again, because no one wanted to disclose this family secret.
Man, this is just too big for me to understand on an emotional level. My heart hurts in so many directions and I feel disgusted, sad, angry, horrified and compassionate all in the same breath. I'm afraid we're all going to need professional help when this case is finally concluded.
Sorry for this mind dump - I just wanted to see if it makes sense to anyone else and if there are other oddities I've left out, relevant to the timing of Caylee's conception or birth, please add.
I hope LP is right. I like him a lot and I believe his heart is in this. If he's right, it would also go to motive for Casey getting rid of Caylee whch would help prosecution.