Marlene Warren opened the door to flowers and balloons, delivered by a clown, but no one expected the gunshots that followed. Now the woman who investigators say dressed as that clown, killing the wife of her now-husband, is headed to trial.

Joining Nancy Grace today:

• Kirk Nurmi - Jodi Arias former attorney & author of "Trapped with Ms. Arias" 
• Dr. Angela Arnold - Psychiatrist, Atlanta Ga
• Jeff Cortese - Former FBI Special Agent
• Dr. Katherine Maloney - Deputy Chief Medical Examiner, Erie County Medical Examiners office, Buffalo, New York
• Levi Page - Investigative reporter, CrimeOnline 
• George Schiro - Lab director at Scales Biological Laboratory Inc.