Nearly 20 years ago, Peterson was convicted of killing his pregnant wife, Laci Peterson, and their unborn son and was sentenced to death. Last year, his death sentence was overturned. WATCH THE FULL EPISODE OF 'WORLD NEWS TONIGHT': https://bit.ly/3uHCDO5 WATCH OTHER FULL EPISODES OF WORLD NEWS TONIGHT: http://abc.go.com/shows/world-news-tonight WATCH WORLD NEWS TONIGHT ON HULU: https://bit.ly/3iQLwPp #WorldNewsTonight #DavidMuir #ScottPeterson #LaciPeterson