This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. Embed Code Restart Playing WATCH MORE VIDEOS FROM THIS EPISODE > Dr. Phil says, it’s difficult to predict who is likely to carry out such acts or when and where. But, he said, family members are in the best position to notice changes in a person’s behavior and seek help. ShareTweet