 Earlier this year, both parents were found guilty of all charges. This is the first time that parents of a mass shooter have been held accountable for the actions of their child. It's left many people wondering what kind of precedent this will set and where the line is drawn for parental accountability in the eyes of the law. Dr. Carol Lieberman, a forensic psychiatrist and trial expert witness, says that to understand the Crumleys' convictions, we need to take a look at the family dynamic over the years.