On a September day, Orion Krause calls his mom to get a ride home. The pair decide to visit her parents. Not long after, four bloody bodies are found in the family home.: Krause’s grandparents, Elizabeth Lackey, 85, and Frank Lackey, 89, his mother, Elizabeth Krause, 60, and the health care worker, Bertha Mae Parker, 68.

Down the street, a neighbor is calling 911 after a naked man, covered in mud, shows up at his front door, saying he's just murdered four people. It's Orion Krause.

Joining Nancy Grace Today:

• Dale Carson - Criminal Defense Attorney, Former FBI Agent, Former Police Officer, Author: "Arrest-Proof Yourself, DaleCarsonLaw.com
• Dr. Angela Arnold - Psychiatrist, www.angelaarnoldmd.com, Former Medical Director of The Psychiatric Ob-Gyn Clinic at Grady Memorial Hospital
• Dan Corsentino - Former Police Chief, Former Sheriff, Served on US Homeland Security Senior Advisory Board, Private Investigator, www.dancorsentino.com
• Dr. Todd M. Barr, M.D. - Deputy Medical Examiner/Forensic Pathologist at Cuyahoga County Medical Examiner's Office Featured in "Thin Places: Essays From In Between" by Jordan Kisner, Twitter: @ToddBarrME,
• Angenette Levy - Emmy-nominated Reporter & Anchor, Twitter: @Angenette5