True Crime Vault: Last Seen Walking

20/20 - A podcast by ABC News

A high school girl vanishes then turns up dead. Her boyfriend is later convicted of manslaughter. But he professes his innocence and a determined attorney takes up his cause. She uncovers evidence that throws into doubt the entire case against him.  Originally broadcast 02/28/2020 Learn more about your ad choices. Visit megaphone.fm/adchoices