natural problem solver, trying to formulate ideas of who, how, why and when. >> everybody was trying to >> the marcells, they were self-sufficient, and the. children looked out for each other. >> how do you think it shaped brittani being number five in this big family? >> she looked up to kathleen, kristin and alicia. >> remind me who is the oldest? >> i am. i think i was her mom, too, and the littlest one has the most moms. >> like her oldest sisters, brittani was disciplined and hard working. >> she was an excellent student. she had a good circle of friends. >> i think she kind of set herself apart from the popular crowd rather than was inside it and that's because she's very genuine in everything she does. >> brittani was headed to college and hoping to be a tv reporter. >> very driven, she was