lisa jennings was dead.he question for detectives was, did she take her own life or was this murder? here is keith morrison with "a crack in everything." ♪ >>> it was his secret that started it, a secret gift. it was christmas eve in the year 2006. a little farm not far from a little town called buffalo. buffalo, missouri. and on that farm in the fine, new house brad and lisa jennings had built for their family, the stockings were hung, the children were snug in their beds, and lisa was sitting up very late, drinking wine and crying. meaning? well, who knew. but for one thing, with lisa in the way brad couldn't sneak that secret of his into her stocking, which is what started it, the flaring argument, the slamming doors, the sudden silence. before amanda woke up to the sound of her dad on 911. >> and he's very hysterical, you know. he's -- he's crying, can't really say anything other than get here quick, get here quick. i heard that two or three times. >> such a complicated tale with its secrets and lies and