Several vessels were moored together inside Hells Gate.  Two rolls of boats were transom to transom approximately 20 to 25 feet apart.  Victim had jumped from vessel #1 and swam to vessel #2. Victim spoke to witness #2 in vessel #2. Victim was resting on the swim dock, at the rear port side of vessel #2.  Witness #2 stated that was at the swim deck for approximately 3 to 4 minutes after they had spoken to each other.  Witness #2 had walked away, when she returned the victim was no longer at the rear of the vessel. Shortly after noticing the victim gone the victims boyfriend came looking for her, 
Victim was recovered the next day by divers in approximately 35 feet of water.

Victim succumbed to carbon monoxide poisoning.
Graford