RedactedNarrative: Vessel 1 Operator/Deceased was involved in a single unit boating incident with Passenger.  Vessel 1 operating PWC in Lake Winneconne immediately prior to the incident.  Operator/Deceased was transported to Hidden Harbor on a rented pontoon boat.  Passenger was not identified until well after the incident.   Passenger was interviewed on 7/2/18.  Passenger stated she did not know the Operator/Deceased prior to the incident.  Passenger got onto the back of the jet ski and drove away from the sandbar area south.  Passenger stated that the Operator was wearing the tether cord around his wrist and it was attached to the kill switch.  Passenger said as Operator began picking up speed, Passenger thought at some point they would be going in a circle as she and Operator discussed this being a short ride.  Passenger was holding onto the Operator around his waist and was bracing for a turn which she felt would be coming soon.  Passenger said that at no point does she recall the jet ski beginning to turn and the last thing she remembers is the jet ski was going straight.  Passenger said she did not see any other watercraft in the area and does not believe there is a possibility they collided with another watercraft.  Passenger said Operator was not driving crazy and she did not feel he was going too fast.  Passenger said she felt like the jet ski was going faster than it actually was because she was on the rear of the jet ski.  Passenger said the ride only lasted two minutes before the incident.  Officers believe that the vessel possibly hit a wave which caused both occupants to be thrown off the jet ski.