Understanding Bipolar. Dave and Debbie expand their coverage on the story of Kyler Efinger. The 30-year-old died earlier this year after he breached an emergency exit at Salt Lake International Airport then climbed into an engine cover of a commercial aircraft preparing for takeoff. What we learned shortly after is Kyler had bipolar disorder. Paul J. Carlson, M.D., Associate Professor of Psychiatry and Training Director, General Psychiatry Residency Program with the University of Utah School of Medicine and Huntsman Mental Health Institute. joins as Dave and Debbie continue our conversation on understanding and managing Bipolar Disorder.