Dry suits float! No need for a lifejacket!

The body was found floating. Drowning victims sink
and then refloat in a day or two as the corpse
decomposes.

He died of hypothermia.

wrote
The press reported the following day that a sole "kite surfer" about
twenty miles to the east (who, even more stupidly, was wearing a
drysuit and boots and gloves but no lifejacket or signaling equipment)
drowned the same day.

http://www.courant.com/news/local/hc...eadlines-local