Heather Mack , 21, and boyfriend Tommy Schaefer, 23, murdered her mother while vacationing in Bali and stuffed Sheila von Wiese-Mack, 62, into a suitcase. The couple is now serving ten and 18-year sentences, respectively. Heather is now fighting for custody of the baby she gave birth to while in prison.

Nancy Grace digs into the bizarre killing with Cold Case Research Institute director Sheryl McCollum, New York psychologist Caryn Stark, Crime Stories contributing reporter Paul Chambers in this “Crime Stories” episode.

Also read: Grandmother seeks custody Heather Mack’s baby, living in prison with mom

“Crime Stories with Nancy Grace” is now 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.

[Photo: Heather Mack/Handout]