Ethan Couch — known as the ‘Affluenza’ teen in the wake of his DUI crash that killed four people — walked out of jail Monday after serving nearly two years for violating probation. Now 20, Couch must stay out of trouble for another six years of probation. Nancy Grace discusses his case along with other “killer kids” cases in this “Crime Stories” episode.

Grace is joined by Los Angeles lawyer Troy Slaten, Southern California prosecutor Wendy Patrick, forensic psychiatrist Dr. Carole Lieberman — author of “LIONS and TIGERS and TERRORISTS, Oh My! — How to Protect Your Child in a Time of Terror,” private Investigator Vincent Hill and RadarOnline reporter Alexis Tereszcuk.

Also read: OUTRAGE: ‘Affluenza’ teen released from jail

“Crime Stories with Nancy Grace” is a national radio show, heard on SiriusXM’s Triumph Channel 132, five times a day. You can also subscribe and download the daily podcasts at iTunes and Google Play.

[Feature Photo: Police Handout/Mugshot]