Hey- I don't mean to stir the pot, and I don't know if this was brought up on the temp. thread when websleuths was down, but maybe there is a misprint in the transcript call from jail?
I don't hear "I wanna try to call Mike" I heard,
Kristina: "So, if I go and get you Tony's number, are you going to finish talking to me?"
Casey Anthony: "I will call you tomorrow. I want to talk to him really quick. I wanted to actually
try and call it a night. I haven't slept in four days. I have not slept in four days.
http://www.orlandosentinel.com/news/local/crime/orl-casey-anthony-jail-full-mp3,0,4188975.mp3file
Maybe I'm wrong here, but I've listened to it over and over, and I've played it for other who agree. I just don't hear the "Mike" part...and it makes sense to say "call it a night", as she follows with "I haven't slept in four days".
I can't give you the exact time, but it's near the end, after Christina says "So if I get you Tony's number, are you going to stop talking...etc"
and I personally think that the guy visiting was just maybe someone who liked her in high school, or something. I don't think it had anything to do with anything...
Like I said, I could be wrong, but that's what I hear. Maybe someone else does, too?