I voted for Tommy and Joe
I have been reading here for a while, but this is my first post. I love reading all your facts and thoughts.
IMO I think it is very clear that Misty is alluding to Tommy and Joe. I am sorry I do not know how to link, but if you refer to the Media/Links Only page- the last bunch of phone calls - Misty Call #10 is a call with Misty and her grandmother. During the call her grandmother states that Lisa (Misty's Mom) said the whole front page of the newspaper was about how Tommy and Joe took Haleigh away. Misty's reaction IMO is very telling. Misty says that wasn't in any paper and says her mom is silly.
IMO I think grandma thought Lisa and Hank were saying it was in the newspaper, but I really think it was in the letter that Misty wrote.
Here's the link for the call between Misty and her grandmother. I've never heard this one. I think you are exactly right about this being the letter Misty wrote. I don't think she knew how to react to GM talking about it, either. She couldn't tell her the truth, since it would be all over Nancy Grace.
Now we know it is Tommy and Joe! Thank you very much!
http://audio.thesky973.com/m/audio/29736865/misty-call-11-2-12-10-b.htm