Nancy Grace: Breaking reports investigators question stepmom Misty Croslin's sister-in-law for 14 hours! She's reportedly asked if she or her husband—Misty’s brother—helped Misty hide Haleigh! All the shocking developments tonight! http://www.facebook.com/NancyGraceHLN?ref=nf This seems pretty significant to me IMO! If they didn't think this sighting was credible then why would they be asking questions like this?