Kendra Hatcher enters the parking garage of her Dallas apartment. Moments later, someone approaches her from behind, shooting her in the head. Police say it was a murder-for-hire. Detectives soon zero in on Brenda Delgado, but why would this dental hygienist, kill the successful pediatric dentist? Joining Nancy Grace today: James Shelnutt - 27 years Atlanta Metro Area Major Case Detective, Swat officer Lawyer www.ShelnuttLawFirm.com Dr. Jenn Mann - Marriage and Family Therapist, Host 'Couples Therapy' and 'Family Therapy' on VH1, "The Dr. Jenn Show” on Sirius XM, Author: "The Relationship Fix: Dr. Jenn’s 6-Step Guide to Improving Communication, Connection and Intimacy", doctorjenn.com Dr. Tim Gallagher - Medical Examiner State of Florida www.pathcaremed.com Sheryl McCollum - Forensic Expert & Cold Case Investigative Research Institute Founder, ColdCaseCrimes.org Alexis Tereszcuk - CrimeOnline.com Investigative Reporter, Writer/Fact Checker, Lead Stories dot Com, Twitter: @swimmie2009