Captain John Kades has been an investigator/deputy coroner for the Los Angeles County Coroner’s Office since October 2000. He has been a member of the department’s Special Operations Response Team and has specialized in disaster operations, aircraft fatalities, drowning/SCUBA cases, and skeletal/buried body cases. As a member of the California State Coroner’s Association, Captain Kades serves on the Association’s coroner curriculum development committee that recommends training standards for death investigations.

Douglas Ebersole, MD, is an interventional cardiologist at the Watson Clinic LLP in Lakeland, Florida and is the Director of the Structural Heart Program at Lakeland Regional Health. He has been diving since 1974 and is an avid recreational diver, technical diver, rebreather diver, and cave diver. He is also a recreational, technical, and rebreather instructor for several training agencies, is a cardiology consultant to Divers Alert Network, RAID medical advisor, and is the Florida Sales agent for KISS Rebreathers.

Dan Orr is President of Dan Orr Consulting. He recently retired from the position of President of Divers Alert Network (DAN) and Chairman of the Board of International DAN. Prior to DAN, he taught recreational diving, collected data and supervised research efforts in the field of science diving, tested diving equipment for military contractors and worked for or served on the Boards of not-for-profit organizations including the Historical Diving Society, Diving Equipment & Marketing Association (DEMA), Academy of Underwater Arts & Sciences, The Institute of Diving, and others.