Alligator gar

Heard Natural Science Museum & Wildlife Sanctuary. McKinney, TX.
the Alligator gar is among the largest freshwater fishes in North America. Gars are often referred to as "primitive fishes", or "living fossils" because they have retained some morphological characters of their earliest ancestors, such as a spiral valve intestine which is also common to the digestive system of sharks, and they can breathe both air and water. In 2011 the largest alligator gar ever caught and officially recorded was 8 ft 5 1⁄4 in (2.572 m) long, weighed 327 lb (148 kg), and was 47 in (120 cm) around the girth.

Great shot and narrative. How big was this guy?

Probably about 3 feet long.