It was further revealed that the 45 year old free-diver was new to the sport, was doing it alone and had told his wife that he wanted to reach a personal free-diving depth goal of 100 feet (30.5 meters). Drowning or heart attack are given as likely causes of death.
Such news is no solace to his widow who is living through the worst time of her life at this moment. The lesson is: never go in, on, or near the water alone. And I would add, follow the old addage "never turn your back on the sea".