A female shooter shot through the glass doors of a church school to gain access to the building.

After breaking the glass, the shooter crawled through the lower portion of the door.  The 28-year-old transgender person is seen pacing the hallway, heavily armed, as alarms are blaring. Six people were killed; three 9-year-old students and three faculty members.

Police storm the building, then exchanged fire with Audrey Hale. Hale was killed. A manifesto was recovered, as was a map of the school detailing camera locations and surveillance entry points.

  Joining Nancy Grace Today:

• Jason Oshins – New York Defense Attorney
• Dr. Teresa Gil - Professor of Psychology and Psychotherapist (over 25 years working with child abuse and trauma victim) and Author: "Women Who Were Sexually Abused as Children: Mothering, Resilience, and Protecting the Next Generation"
• Ken Trump - School Security Expert and Consultant, President of National School Safety and Security Services; Author: “Proactive School Security and Emergency Preparedness Planning;" Twitter: @safeschools  
• Dr. Tim Gallagher - Medical Examiner State of Florida; Lecturer: University of Florida Medical School Forensic Medicine; Founder/Host: International Forensic Medicine Death Investigation Conference 
• Leonard Romero - Forensic Firearms Examiner and Ballistics Expert
• Payton Muse - Fox 17 Nashville Reporter; Twitter/Facebook: @PaytonMuseTV