I think it is more then a coincidence that Casey used the name Zenaida and a person with the same name showed up at Sawgrass 2 days after Caylee disappeared. She must have heard the name before. Remember that she has a habit of uncorporating bits of truth in her lies, like she did with JH. She did know him, but she got the middle name wrong, the fact that he had no kids and hadn't worked at universal for years. That said, she must have heard the Zenaida name somewhere. Most likely from mutual friends. Had some way of knowing that Zenaida could be connected to Sawgrass. But like other names she has used, she added other details, such as the age and the fact that she had no kids, to create her own, new person. So there may be a connection but that doesn't mean that Zenaida had anything to do with the disappearance of Caylee, any more then JH knew about Caylee's disappearance. Neither Casey or Zenaida knew each other, as shown by neither one of them recognizing each others picture. Don't you think if this was the same Zenaida that Casey would have pointed her out and said "Yes, that's her!".
