RedactedNarrative: On august 7, 2018 i conservation officer went to the location where the boat was being kept which was involved in the incident. Once at this location i observed that this boat was bearing iowa registration number 4107ah. I also observed that the capacity plate was located near the stern on starboard side for the vessel. This capacity plated stated five persons or 695 pounds with a combined weight of persons and gear of 1010 pounds. I also observed that this vessel had a compartment that was secured closed by a pin. Through my training and experience i have learned that people are known to keep their paper iowa registration in such compartments. At this time i unlatched and then opened the compartment.
  
  Operator stated that eight person were floating down the river with six persons being in tubes and victim and operator being in the boat. Once the decision was made to return to the boat ramp, the tubers went to the shore with the boat landing on shore next to them. While on shore the tubers deflated their tube and placed them in the boat. At this time all of the tubers entered the vessel with subject being the last person to enter the vessel. Operator stated that subject was seated on the bow of the vessel. Operator then went on to say that the vessel was pointed upstream when he put the motor in forward gear and began to add throttle. Operator stated once throttle was added at this time is when the bow of the boat when under the water and water rushed in the boat. Once the water rushed into the vessel this is when the boat rolled and floated in the water upside down. 
  
  During the vessel rolling over all persons were ejected from the vessel and placed in the water. At this time three people were able to swim to shore, none of these person were wearing or had a personal floatation device. 
  
  Another subject was able to swim to the boat where she held on to the vessel and was able to reached up into the vessel and find a personal floatation device and place it under her arm while she was holding on the boat. She was able to hold onto the vessel and eventually claim up on top of the boat where she would be found floating down the river by eddyville fire and rescue’s boat. 
  
  Victim was wearing his type 2 personal flotation device while he was in the boat along with the young girl. While operator was in the water he observed that victim still had his personal flotation device on however operator observed that victim was not able to bring himself to the others. This is when operator swam to victim and grabbed victim's personal floatation device and proceeded swimming to shore with victim in tow. Once operator arrived at the shore he was able to get victim's head and shoulders out of the water. Operator stated that this was all he could do because he was exhausted from swimming and the steepness of the bank along with the others that made it to shore had left to find help.  At this time operator started cpr and then stopped cpr to go see if there was any communicating devices where in a camper that was parked along the shore. While operator was looking for such a device a male and female came down to the shore to help. This male and female that came to help was contacted by the persons whom went looking for help. Operator and the male went back to victim and started cpr again and continued until ems arrived at the scene. 
  
  Ems had taken victim to mahaska health partnership where he was pronounced dead.
  
  On august 9, 2018 at approximately 8:28 p.m. i went to the clubhouse located in oskaloosa and talked to subject. While talking to her she informed me that there was 6 persons in tubes that were in the river. The tubes went to the river bank and got in the boat. She stated that operator wanted to take all the person back in the boat at once. Subject2 didn't want to do that and that she wanted to make two trips to get all the person back to the boat ramp. However operator insisted. Subject2 went on to say that they all entered the vessel and that subject was the last person to enter the boat and seated himself at the front of the boat. Subject2 also stated that operator accelerated the boat when the boat was approximately in the middle of the river and this is when the bow of the boat went under the water and water started to rush in the boat, rolling the vessel. Subject2 then stated this is when she stayed with the boat holding on to the side and reaching into the vessel grabbing a personal floatation device. Then putting the device under her arm and holding on to the boat as it went down stream. While the boat was drifting down stream she was able to get the personal floatation device on correctly and climbed up on top of the boat. Which then she was discovered by eddyville fire and rescue. I then asked where is the personal flotation device that victim was wearing that day she stated that it was at the residence in which she was staying.
  Once i departed the clubhouse i arrived at the house where subject2 was staying to inspected the personal floatation device that they said victim was wearing. During this inspection of the personal floatation device i observed that it was free of rips in the fabric and straps and that the buckles where functioning. I also observed that the personal floatation device was united states coast guard approved type two.
  
  
  