If either of the guys casey was boinking during June were bad guys, they probably would have tried to link one of them to the murder! I think the newer boyfriend freaked out when he learned the child had been missing and he had been around her and realized that she was just happy and carefree during that time. The tape they played today where she asked folks at home for his phone number was kind of creepy because I doubt he would have accepted any calls from her at that point!
And is it just me, but did you get the sense that her family and friends already KNEW that, and that is why they would not cough up his telephone number?