It's been 12 days since toddler Quinton Simon has been seen. Now the Chatham County Police Department says they believe the 20-month-old is likely dead. 

According to the boy's mother, Leilani Simon, her boyfriend last saw the tot at about 6 a.m. on October 5 as he left for work. Later, when she woke up, Simon couldn't find Quinton.

A 911 call was made shortly after 9:30 a.m. Simon told the dispatcher she found the door open and Quinton was gone.

An extensive search was launched, including search warrants executed at the family home. Leilani Simon is considered the primary suspect, although no formal charges have been filed and no arrests have been made.  

Joining Nancy Grace Today:

• John W. Dill, Esquire - Personal Injury Lawyer (Winter Park, FL), Author: "The Method: Proven Techniques for Winning Jury Trials", www.JohnWDill.com, Twitter/IG @JohnWDillESQ, Represents Michelle Parker's family, Zenaida Gonzalez vs. Casey Anthony 
• Dr. Angela Arnold - Psychiatrist, Atlanta GA, 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, Voted "My Buckhead's Best Psychiatric Practice of 2022"
• Karen L. Smith - Forensic Expert, Lecturer at the University of Florida, Host of Shattered Souls Podcast, @KarensForensic, barebonesforensic.com 
• Brett Buffington - Lead Investigative Reporter, WSAV NEWS 3, A NewsNation Affiliate, WSAV.com, Twitter: @BrettWSAV