Giant Sawfish hooked off a Florida pier!

I was fishing at my favorite pier on Anna Maria Island Florida when a friend of mine Dean hooked something on his shark rig. He fought this fish for over 30 minutes and I thought he had a big stingray because it would run off a bunch of line then just sit there. I grabbed the gopro and ran down the beach when the fish was getting close. Dean says I saw it and it's a big nurse shark, I was not excited about that but I was already close to the fish so I stuck the camera in the water near him and then I saw his impressive saw!