It could have been a BIG snake. Some people will let pythons and such go after they get to big to keep. Me and a buddie was fishing the Cumberland river years ago, down next to Tompkinsville and we saw a huge snake trying to get up the bank across the creek from us, it was huge,several weeks later someone saw three guys carrying a snake across a field that was over 15ft long, they supposidally lost it. Who knows what evil lurks in the depths of our waters. But a sturgen is possible.Mark we are too far north for manatees,lol lol. Also could it be Jimmy Hoffa?