jarring to think that when a life ends, so much begins. a family's grief. a community's shock. and in this case right here where i'm standing a murder investigation. heather collins has always been proud of her three girls, especially her oldest daugher halee, who even at a young age was eager to lend a helping hand. >> there's you know so many pictures of her holding the baby sister, you know, and just taking care of them. yeah. she's always leading the way. >> my kids, they you know, they wanted to feed the bottle and, "can i change a diaper? " >> uh-huh. she was the best diaper changer ever. >> a mother's helper and sister emilee's best friend. with halee, she says, she felt safe. >> she was always definitely what you pictured an older sister being like. like, the