Dylan Redwine disappeared in 2013 soon after arriving at his father's Colorado home for a court-ordered visit the 13 year old did not want to make. Mark Redwine's arrest was not a surprise to the boy's mother Elaine Hall, who had been pushing for it since early in the probe.Joining Nancy Grace Today:Elaine Hall - Mother of Dylan Redwine Troy Slaten - Criminal Defense Attorney, Los Angeles California Dr. Angela Arnold - Psychiatrist, Atlanta Ga www.angelaarnoldmd.com Joe Scott Morgan - Professor of Forensics Jacksonville State University, Author, "Blood Beneath My Feet" featured on "Poisonous Liaisons" on True Crime NetworkLauren Scharf - Fox21 Colorado Springs