Mixed martial arts champ Cedric Marks is behind bars charged in the deaths of former girlfriend Jenna Scott and her friend, Michael Swearingin. He is now facing new charges. Authorities say he killed the mother of his son, April Pease. She has been missing for more than 11 years.Joining Nancy Grace today:Ashley Willcott - Judge and trial attorney Cloyd Steiger - 36 years with Seattle Police Department, 22-year homicide detective, author of "Seattle's Forgotten Serial Killer: Gary Gene Grant"  Karen Smith - Los Angeles forensics expert, lecturer at the University of Florida, host of "Shattered Souls" podcast.Dr. Kendall Von Crowns - Deputy Medical Examiner, Travis County, Texas  Dr. Daniel Bober - Forensic psychiatrist Levi Page - Investigative reporter CrimeOnline