I'm not buying the whole Joe story at all. If they hated and feared this guy so much, why was he visiting and staying with Chelsea and Timmy and hanging out with Misty and Tommy, etc...?
RC could be the "shocker" arrest as it would shock many people if he is invovled in the death of his daughter, though I am not among them. If it was Joe all the time and they hated/feared him, why hold out over a year, leaving him out there to do all the harm that he supposedly could do? Their kids have been out there this whole time, not just all of a sudden. And Misty knowing she is in trouble...well, she is in trouble, she is facing a very long time in prison, that could mean anything, it could mean she finally decided to point the finger at Joe hoping for a lighter sentence...
Whatever the case, LE obviously is not going to arrest Joe on the strength of the desperate accusations of Tommy and Misty...it's been 5 weeks since they searched the dock...and I still don't know what they could possibly pull out of the water that would link the crime to any one person...