. >> aaron quinn, it took himself hours. it wasn't until that afternoon the vallejo police were able to talk to him after he came forward. >> reporter: aaron's mother later told us police polygraphed him five times and he was put in jail clothing and given little food or water and held in a small interrogation room for hours. across the country, denise's friends didn't know any of this. but they knew enough to be worried. >> i mean, someone being kidnapped, to be honest a lot of those stories don't end well and you don't want to think about those things, but you think maybe they are not going to alive. >> reporter: then about 33 hours after denise huskins disappeared, reporter henry lee was standing outside of aaron's home when his phone buzzed an an email. >> what is chilling than email became attached with an audio file and this audio file, a woman's voice. >> i'm denise huskins. >> the soft-spoken woman on the recording said she was denise. this very strange tale was about to get much stranger. >> what had happened to deni