I'm so glad to see this thread, I am usually very careful not to jump to conclusions, but this part of the tape really jumped out at me. Here is why:
I cannot see the Anthonys, after all of the media scrutiny they have suffered, inviting some random person to their home on a day that is so sobering, emotional, and personal. They would have no way of knowing, (if it were truly someone they'd never met) that this person wouldn't leak to the media, sell the story for profit, or say something to set them off. I don't buy for a second that some random person called and says he was alone on Caylee's birthday (what is her birthday, to him, if he is a total stranger? I mean, I'm sure her birthday means a lot to all of us, don't get me wrong, but I mean, from the ANTHONY'S point of view- why HIM, over everyone?)
This leads me to believe that it was either
A) someone supposed to be the father (which I am doubting right now)
B) Someone that knew Caylee personally. Tony? Ricardo? Someone the Anthony's hadn't met.
C) Trenton Duckett's dad.
I'm leaning towards B or C.
B) is plausible, and is a blanket- it could cover lots of people. I don't see the point of George bringing it up in conversation, really, though.
C) I feel like George brought this up with the possible intent of mentioning that it was J. Duckett, just to see how she'd react (since many people seem to think that this case somewhat mirrors Melinda Duckett, who many people believe was involved in Trenton's death) I don't think he mentioned it was J. Duckett, either because he knew it would draw those parallels to his daughter in the public eye, if this got out to the media, or just out of respect for J. Duckett.
IF it was J. Duckett who was invited, I could definitely see the Anthony's feeling a connection with him, taking pity on him (who would have been "alone" and would have understood the pain of passing a child's birthday, while they are missing. However, I kind of rule Josh Duckett out, because they met him on July 17, we know, because he is pictured hugging Cindy Anthony in news reports. So IF George Anthony WAS referring to J. Duckett, he was probably lying.
Anyway, these are the only circumstances in which I could see the Anthony's inviting someone they didn't know to their house on such a sensitive day.
I don't think, from watching this video, that Casey knew who they were referring to. Notice how relaxed and comfortable she is when the subject is changed. Most liars will relax when the subject is changed from their lies. She's like a different person when she starts praising them for taking in the stranger on her birthday. I think she just used this as an opportunity to "stroke" George and Cindy. Funny how Casey thinks she has rooms\ to praise them, (her parents!) for doing right. Like she is the "moral compass" of the family. Heh.
O/T I've been reading in instances in which speech is analyzed to detect lies, that "3" is a "liars number" and that they often use "threes" when lying. I want to look into it more first, but if anyone has any examples of Casey using "threes" (zg and her two roommates, etc...) will you please PM it to me?
Thanks
Cheers