After all this time I wonder what was left to recover. I remember my dentist telling me either his brother or cousin was part of the recovery team that brought up JFK jr and his wife and SIL. He said the bodies were totally encrusted in crabs and and the team had to blow off percussion grenades to get the crabs off. Yuck.
I don’t doubt that by now, not much was left to get DNA from. Nothing edible stays uneaten for long, in the seas. Crabs, lobsters etc are the ‘Little Hoovers’ of the ocean floor.