I have caught many fish in my day and I cant remember a fish that I have released that someone could have successfully snagged. This story doesnt make any sense to me. Either the fish was injured to a point where he couldnt swim off or we have some pro snaggers at the river.
The fish was not injured at all it swam away towards the wall and he casted his rod right against the wall as well. He had it hooked somewhere on the tail and on the stomach.