Lots of new information coming from Tyler Robinson's preliminary hearing. The defense is disputing DNA evidence saying investigative reports note Robinson's roommate/lover DNA was on the towel and screwdriver found at the murder scene. 

Prosecutors unveiled new videos on which traced Robinson's movement across campus, show that he made contact with Charlie Kirk's group before the event.  

Joining Nancy Grace today: 

• Philip Dubé -  Former Court-Appointed Counsel, Los Angeles County Public Defenders: Criminal & Constitutional Law, Forensics & Mental Health Advocacy
• Dr. Shari Schwartz  - Forensic Psychologist (specializing in Capital Mitigation and Victim Advocacy),Author: "Criminal Behavior" Author: "Where Law and Psychology Intersect: Issues in Legal Psychology," Website: panthermitigation.com, X: @TrialDoc 
• James Hamilton  - Former FBI Special Agent and Founder of the Hamilton Security Group 
• Joseph Scott Morgan  -  Professor of Forensics: Jacksonville State University, Author, "Blood Beneath My Feet", Host: "Body Bags with Joseph Scott Morgan", @JoScottForensic, 
• Nate Eaton  -  News Director, East Idaho News, Emmy-nominated journalist.  Host: 'Courtroom Insider' on YouTube
• Dave Mack  -  Investigative Reporter, "Crime Stories"