Snip: Mark Lippman, the attorney representing the Anthony family, said George Anthony does not know Thompson and has never heard his name.
The Casey Anthony defense team recently sent an investigator to talk to Thompson, but he would not cooperate.
http://www.clickorlando.com/news/28246219/detail.html
Just a theory: Maybe Casey called Thompson from George's phone but they never spoke so once Caylee was found it would be pinned on him or George. She looked up ZFG name on the internet. It wouldn't surprise me one bit if either Casey called or she left the number laying out somewhere under another name (ZFG?) and GA was calling or CA was calling to see where Casey and Caylee were. Maybe ICA met him at the tattoo parlor...there are endless possibilities. Defense is just grasping at straws, well the couple they have left.