RedactedNarrative: Victim, was a passenger on a tube being pulled by V1. According to operator and passenger statements, he was done tubing and was climbing into the back of the stopped fishing boat when a wake on the lake contributed to him falling and hitting his head on the inside of the boat. He was taken by ambulance to CHI Hospital in Corning, IA then on to Bergan Mercy Hospital in Omaha, NE with a concussion. Two partially filled, open cans of beer and one empty can, were found in the boat.  The victim was wearing a life jacket.