The body of 13-year-old Minnie Soriano is found by a homeless man in a dumpster. The girl has been sex abused and strangled. Now after 22 years, 49-year-old Joseph Martinez has been arrested. Officials allege that Martinez, who teaches astronomy on the street, knew Soriano because he lived in her building. The teen also had an interest in astronomy and wanted to be an astronaut. Police say familial DNA technology pointed to Martinez. This is the first time the technology has been used in New York City.

Joining Nancy Grace today:

• Phil Vetrano - Father of Murdered Jogger Karina Vetrano
• Wendy Patrick - California prosecutor, author “Red Flags” www.wendypatrickphd.com 'Today with Dr. Wendy' on KCBQ in San Diego, Twitter: @WendyPatrickPHD
• Dr. Angela Arnold - Psychiatrist, (Atlanta GA) www.angelaarnoldmd.com, Expert in the Treatment of Pregnant/Postpartum Women, Former Assistant Professor of Psychiatry, Obstetrics and Gynecology: Emory University, Former Medical Director of The Psychiatric Ob-Gyn Clinic at Grady Memorial Hospital
• Joe Scott Morgan - Professor of Forensics: Jacksonville State University, Author, "Blood Beneath My Feet", Host: "Body Bags with Joseph Scott Morgan"
• Tony DeStefano - Special Writer, Newsday, Author: "The Deadly Don: Vito Genovese" and "Mafia Boss", www.tonydestefano.com, Twitter: @TonyNewsDay, Instagram: @Tony.Destefano.Newsday
• Dr. Monte Miller- director, Forensic DNA Experts LLC