Dr. John M. Gullo is a clinical psychologist with over fifty-plus years of experience. He practices rational emotive behavior therapy. Dr. Gullo, with famous coauthor Dr. Albert El...ver maisDr. John M. Gullo is a clinical psychologist with over fifty-plus years of experience. He practices rational emotive behavior therapy. Dr. Gullo, with famous coauthor Dr. Albert Ellis, published the book Murder and Assassination in 1971 and several other publications. He resides in the Tampa, Florida, area.ver menos