RedactedNarrative: Approximately 3 pm fellow Hunters saw V1 hunting the north tip of Nebraska Island.  At approximately 5:30 pm these same hunters were heading to the south tip of Nebraska Island to pick up hunters when they heard a cry for help.  They couldn't see anything yet heard a cry for help from V1.  Victim  1 was floating in the river for approximately 1.5 miles and couldn't move due to hypothermia. V1 one had the motor fail and then the vessel traveled down stream before it flipped over and threw the victim out of the boat.  No alcohol was detected and the victim was not wearing a life jacket.