During one of the three conversations with Clem in the box car, she asked if it's okay to tell her parents something. The responses were: 'Yeah, sure' or 'I don't think that's a good idea'.
I'm not sure how I missed what she was asking -- because I hang on every word that Clem says for fear of making her a serial killer -- but I completely missed the set up. I said 'Yeah, sure' because the timed event was about to completely run out.
Was she asking for permission to reveal Lee's murder conviction?