Peter Kelly and a friend were fishing on the Minnesota side of the St Croix River on the age of nine when they heard three rowdy men across the water . They asked them to be quiet and an argument ensued for three hours . The three men asked Kelly and his friend to come over so they drove to the Wisconsin side , where a fight unfolded and Kelly was fatally stabbed . Kelly , who volunteered as a high school wrestling coach in his spare time , leaves behind a wife and five children , all under Tuesday .
Peter Kelly and a friend were fishing on the Minnesota side of the St Croix River on Tuesday when they heard three rowdy men across the water . They asked them to be quiet and an argument ensued for three hours . The three men asked Kelly and his friend to come over so they drove to the Wisconsin side , where a fight unfolded and Kelly was fatally stabbed . Kelly , who volunteered as a high school wrestling coach in his spare time , leaves behind a wife and five children , all under the age of nine .