I have heard of and actually caught one Muskie myself from the Ohio. November of 2009 while Sauger fishing. White grub right at the bank as i was lifting the jig out of the water. I thought i was famous so i called it in and surprisingly to me the guy i spoke with said it was not uncommon and probably came out of the Licking River via Cave Run. I caught is less than 5 miles from where the Licking enters the Ohio