Report 34664: Fishermen describe nightime encounter at Clendening Lake near Buckeye Trail

I was at the back waters of Clendening lake near Cadiz, Ohio with my friend Cj and we heard a man-like scream. I know what coyotes, hoot owls, cows, raccoons, opossum, fox and most local animals sound like. We heard this scream about 3-4 times from multiple ranges. The first was within 100 yards and the next two were fairly distant. Cj answered the scream and the nearest location returned the call. After about five minutes of silence we returned to fishing. About five minutes later we heard a loud splash that resembled a dense object landing in the water. I've heard ducks landing and beaver tails slapping on the water and these did not resemble that. It happened about four more times, so we decided to pack up and leave. On our way out we stopped where the path to the fishing area met the road. My truck was 15 feet in front of me and a rock hit the water five feet from my truck which was parked next to the opposite side of the creek we were fishing. I yelled "Who's out there?" After about three minutes of listening we got to my truck and left.