True Crime Vault: Sole Survivor

20/20 - A podcast by ABC News

For 15 years, Heather Robinson thought she knew her life story. But the arrest of a serial killer 500 miles from home would reveal a dark family secret, and turn her life upside down. Now she’s on a mission to find the truth. What happened to her mother? Originally broadcast 10/04/2019 Learn more about your ad choices. Visit megaphone.fm/adchoices