Dorothy Newell, a Dateline producer known for her in-depth reporting, shares revealing insights on the Brian Walshe case, including forensic evidence and the implications of his guilty plea. Kevin Geis, a reporter from NBC Connecticut, details the complex trial of Michelle Troconis and her ongoing appeal, highlighting surveillance inconsistencies and defense claims. Marissa Meyer brings the Dateline Roundup, covering the shocking murder of coach John Beam and how criminology students solved a cold case, alongside reflections from NXIVM's Allison Mack on her controversial past.