IDK, but at 1st, I thought Misty was covering for Ron, but then I spent a long time thinking he was covering for her. I never really fully gave up on that theory. but after the bust, he seemed to push Misty aside-like his attitude was 'every man for himself'. I don't like that theory, because it's just wrong on so many levels, but I think there's the possibility that he loved Misty more than he wanted justice for Haleigh. After this case 1st broke, Misty went to her mom's, but soon went back to Ron. I always wondered why. I hope & pray that it's because he knew that she wasn't responsible, but it could've been because he saw her tears, believed she was suffering, & decided to forgive her. Ron may have had a moment of insight, & realized that his actions were partly to blame? IDK, but we may find out if he ever gets the chance to testify. Also, because of Tommy's actions, changed stories, etc...there is the possibility that Misty was somehow covering for him, & Ron realized that she wasn't responsible, & that's why he harbored her. I can only guess, but there are reasons for Ron's actions.
IMHO.. All of Ron's actions involve covering Ron's rear...No matter what........