RedactedNarrative: The river was well above normal river levels and the current was very swift and strong. Upon arrival at the scene witnesses were yelling from across the river for help and I noticed V1 was overturned with the victim pinned between a tree laying across the river and V1. The victim was already deceased by the time we arrived.  According to V1's passenger they had been drinking prior to the accident.  A group of canoeist were floating the river together and had made it to the halfway point when they stopped because some were concerned about the condition of the water (very rough and rapid).  V1 victim and passenger decided to go ahead and see if it was "safe" for the rest of the canoeist to float down.  They didn't go far until they "got sucked into the tree and overturned" according to the passenger.