but who kills themselves with bactine? the family says she was >> holy cow, she was murdered. >> even assembling a world-class dream team to solve it. >> there's not enough to call it a suicide. >> tonight, "20/20"'s investigation lighting a fire under an eight-year-old cold case. follow along as we retrace annie's final hours, far from home. >> so, annie may have been here. >> no stone left unturned. doing the job they say the police didn't. >> they treated this evidence like trash. >> from a pastry shop. >> she was here. >> to a funeral home. >> the capital to the state penitentiary. answers for annie. >> good evening. i'm elizabeth vargas. david is on assignment tonight. at a time when so many of you have your children home for the summer these parents are still trying to figure out how their daughter died, eight years after it happened. we're live on facebook and twitter, as debra roberts tries to find answers for annie. >> reporter: alexandria, virginia, a stone's throw from the nation's capital. an upscale suburb in

going a to need a lot -- going to need a lot of bactine. >> that's right.he arena" with a promotional signing here at the convention that was anything but conventional. >> joining us now to talk about it is pete hegseth himself. hey, pete. >> hey, you guys came on out to our books and beers event yesterday. brian snuck in and took over. >> i wasn't invited. >> no, you weren't. i knew what would happen -- >> i wasn't on the list. >> intentional. >> no. >> i came for the book and the beer. >> we let brian in and this is what he did. ♪ >> i always knew pete hegseth was a bright guy. i always knew he was a patriotic guy. and i also know he can write a great book "in the arena." and he's a genius because he's combined the things i like most in life -- reading books, writing books and drinking beer. heys, guy, how is it going? is everyone having a great time? >> having a wonderful time. >> how did you get in? >> my name was on the list. >> i always knew you were bright, but i didn't know you were a genius. combining books and beer. >> you can't beat that. people