My SO and I were walking our dogs on a trail along a river we live about 30 seconds from. Closeby we heard a dog barking like crazy, someone yelling, and in the distance, sirens approaching. As we turned a corner that opened up to a calm eddy in the river people tend to swim in, we saw an unconscious man, fully clothed and soaking wet, pulled up on the riverbank with his shoes still in the water.
The very stressed dog was standing by him. A man was kneeling over him, and a woman was running towards us to meet the police cruiser that had screamed into the parking lot behind us. We had two dogs and a baby stroller with us so we weren't going to be much help. We stood aside while the police rushed to the riverbank, and turned back the way we came.
I hoped so badly they were able to revive him but read a few hours later a 19 year old man had drowned attempting to save his dog who had been pulled into rough water.