my sister is in my driveway and her head is bloody. reporter: so you bury your girl. and then it s a murder te investigation? yep.ig reporter: there were two people brandy feared. one in town. she thought she was being followed. reporter: one thousands of ow miles away.r: josh was still in alaska.ay reporter: and then there was the new man in her life. anybody close to brandy, we need to take a real hard, r: serious look at. reporter: no fingerprints. no dna.r: and no arrests, for years. reporter: you re grieving, how do you put all that awful time together, molly? day by day. reporter: then hints emerge of someone s dark past. you ve got robberies going on, the homicide.go reporter: and one brave woman willing to talk. he told me the same that happened to brandy would happen to me.ld reporter: the question wasn t just who murdered a young m mother.st it was why? there was no money.hy there just wasn t a reason to do it. she didn t hurt nobody. she