Each year, approximately 20 mass shootings happen in the United States. How does this happen? Would you know if you were raising a killer? In a very rare and emotional interview, hear from Jeff, whose son, Andy, became a school shooter. Then, go inside the mind of the shooter, when Dr. Phil speaks with Andy from prison. Plus, Nicole and Jim say they’re so frightened of their 15-year-old son that they check in with each other up to 50 times a day to make sure each other is safe. And, Kelly and Nick say their 14-year-old son is obsessed with guns and makes homemade bombs. They say when he gets angry, his behavior is out of control, and he lashes out to extremes. Kelly says she’s at her wits' end and is ready to turn their son over to the authorities. If you fear your child is headed down a dark path, don’t miss the top warning signs.