nbc's carey sanders has the story. >> we were really happy together. >> reporter: 61-year-old james bob ward charged with murdering his wife diane was meeting with his oldest daughter, mal ory. >> we had our ups and downs. >> reporter: when things turned weird. as ward talked with his sister-in-law, there in the background daughter mallory sticks her tongue out at her father. then she motions with her tongue. and then she strikes a pose. now watch it again and glance at ward, who waves, sticking his own tongue out and laughs. simply a light-hearted moment between a daughter trying to cheer of her father, a father charged with murdering her mother, his wife? a federal former law enforcement officer and expert in the non-scientific body language, watched the 90 minutes recorded so far. where ward dances, unbuttons his shirt. >> i wouldn't do that. >> reporter: where his daughter at other times sits her legs open, her arms drawn around the back of the chair. non-verbal cues that experts say are leads for investigators. >> her legs are spread eagle. she looks like britney spears coming out