It's shortly after 9 a.m. on Sunday Morning: Kerri McDermott answers her door, finding her neighbor's children asking for help.

They can't find Dad and Mom is crying in her bedroom. McDermott calls 911. Police find Breanne Pennington lying in her bed with a gunshot wound to the face. Three spent shell casings are near her body, but Aaron Pennington is gone.

Investigators executed a search warrant for the Pennington home, as well as Aaron Pennington's cell phone. It was what was found on Aaron Pennington's cell phone that led a judge to issue a warrant for his arrest on murder. According to court documents, investigators found a note from Saturday evening, the night before his wife's body was found.

The note said, "Don't say anything. Be quite [sic] If she wakes up just say you're getting nasal spray. Get on side of bed - very close proximity on bed. Put hole in her head."

Pennington has yet to be found.

Joining Nancy Grace Today:

• Kelsey McKay, J.D.- Former Prosecutor/Victims’ Rights Attorney, Founder of McKay Training & Consulting and Respond Against Violence (non-profit); IG& FB: Respond Against Violence
• Dr. Charles Heller – Clinical and Forensic Psychologist specializing in Domestic Violence, Chief Forensic Consultant, Rockland County (New York) Forensic Mental Health Unit, Forensic Psychologist, Rutgers Biomedical and Health Sciences 
• Cpl. David R. Thomas - Senior Law Enforcement Consultant, Intimate Partner Violence Expert
• Dawn Wilcox B.S.N., R.N.-  Femicide Expert, Researcher, Educator and Activist; Executive Director at Women Count USA: Femicide Accountability Project; FB, IG, & Twitter: @womencountusa  
• Leslie Morgan Steiner - Advocate and survivor, Author: “Crazy Love”- NY Times Bestseller; Twitter & IG: @lesliebooks  
• “Turtleman” Chris Adams - Swamp Survival Expert; Facebook: Wiregrass Ecological & Cultural Project/ TikTok: @GAturtleman 
• Rachel Louise Snyder - Journalist and Professor at American University; Author: “No Visible Bruises: What We Don’t Know About Domestic Violence Can Kill Us" and New Memoir (out now): “Women We Buried, Women We Burned;" Professor at American University; Twitter @ IG: rlswrites