RedactedNarrative: Victim 1 was on the platform of vessel 1 and attempted to jump from the platform onto a tube that was to be used to tow the victim.  Victim 1 missed the tube and attempted to swim to it and was struck by the propeller.  Operator stated he thought the drive was in neutral.  Area of the accident was approx 150 yards east of sandy beach and approx 1760 yards north of cedar point.