RedactedNarrative: Subject was in a canoe that hit a stump/tree in the Buffalo River.  His canoe then overturned causing him to be swept up next to a tree in the river.  He couldn''t free himself of the tree, so his dad jumped in out of his canoe to get subject out of the water.  As he was grabbing subject, another canoe could not stop their canoe and struck subject in the side of the head.