This is TENTATIVE - the rumor is that someone apparently fell or was pulled into the water when trying to retrieve a raft. The location is from newspaper reports of the mile marker (104), and that the body was recovered near Upper Landing, which is very shortly below the last drop in the narrows (lower narrows; a class V drop at current levels). I expected to find more details on MountainBuzz, but nothing is posted yet. The person that runs the Rock Report (Tony Falbo) works with the local fire department, lives in the canyon, and probably knows about this.
Here's a short description: http://kdvr.com/2016/07/16/body-of-missing-man-found-in-poudre-river
LARIMER COUNTY, Colo. -- Search crews have found the body of a missing man who fell into the Poudre River on Friday night, the Larimer County Sheriff's Office said.
The sheriff's office said the man’s body was found at 12:30 p.m. Saturday near Upper Landing Campground just less than one mile down river from where he was last seen.
The man went missing Friday after falling into the river when he was trying to retrieve a raft. The sheriff's office said it happened between Stove Prairie Road and Kelly Flats near Highway 14.
The man’s identity has not been released.