You know, through all of this I've never really had a theory as to exactly what happened. There was always just something a little bit "off" about this whole thing, but I've never been able to put my finger on it. One thing I know for sure, if whatever happened was truly an accident, then I believe that the parent most definitely would have shown some emotion/remorse even if they chose to cover it up for some unknown reason. That is why I have always believed they had some involvement in his disappearance. There has always been such a stark lack of emotion whenever I see them being interview. My conclusion: they know what happened, and it was certainly no accident.