EVIL MOM SCALDS, KILLS tot-son, takes Lyft to dump tiny body in trash

Four year old Malachi's body was found in a dumpster after his mom claimed he went missing. She's now charged in his death. Nancy Grace dives into the heartbreaking story with Defense Attorney Darryl Cohen, Forensics Expert Karen Smith, Psychologist Caryn Stark, Medical Examiner Dr. Michelle Dupre , and Crime Online investigative reporters Dave Mack and Levi Page.