Nancy Grace was on my DL 2247 THR 04 DEC 2014 NYC-LGA to ATL flight. I ducked into the men's room in concourse A following the flight, and when I came out I saw her waiting nearby.
I looked at her and said, "Are you who I think you are". She said, "Hey! Yes I am! Want a photo?"
Got a good iPhone photo with her that she was very polite to offer - ended up having her husband, David, take the photo. Told her I was going to my best Jodi Arias impression in the photo, nailed it!