I acted as an emergency contact for a diver who died during a dive trip.
It was actually quite involved. I had to go to the hospital, the police station, the funeral parlor, the diveshop, the hotel, and his car rental company. I also had to contact his brother who came down two weeks later. The police conducted an investigation and searched though all of his belongings.
After talking to witnesses, I found out that he was found on the surface by the first officer of Paul Allen's yacht. I ended going aboard the yacht to collect information on what happened to him. The first officer was on one of the two yachts dinghys going to shore when he encountered a tank floating on the surface. They first thought that a tank had fallen overboard, but found the diver was just below the surface. They took him to the shore and then had the yacht's nurse come over on the yacht's second dinghy with adrenaline. They were not able to resuscitate him before the ambulance arrived. He was pronounced dead at the hospital.
What was also disturbing is what happened afterwards. In the process, his waterpoof wallet with identification, credit cards, and cash that he had on his body went missing. As a result, they initially did not know who he was and I was not able to obtain his DAN card for transportation back to the US. Two weeks later, his wallet mysterious reappeared intact, but without any cash in it. He ended up being cremated on the island. Because he did not fly back alive in person, the airline refused to transport any of his effects.