. >> reporter: zenya hernandez, a divorced nurse enjoyed a happy life here raising two daughters, sara abigail, known as abby. >> fantastic place to raise a family. very close-knit community. >> reporter: that community, a picture-perfect backdrop to a seemingly idyllic childhood. >> abby always has been very kind, always loved animals. very cheerful, happy child. >> girly girl? a little tough? >> a little bit of a tomboy. she's very athletic and a fantastic skier. we hiked a lot together. >> reporter: miranda cloutier and abby have been best friends since seventh grade. >> how would you describe her? >> very funny. always in a really positive mood. >> she has this really nice personality of being able to talk to anybody. so she kind of became friends with anybody she met. >> reporter: as a new high school freshman, abby studies german, robotics. she loves her boyfriend, jimmy, and classic rock, especially tom petty. ♪ gonna leave this world for a while ♪ ♪ now i'm free ♪ >> it was a good life. >> reporter: a good life until october 9, 2013, when 14-year-old abby doesn't come home from