Nolan Wells not first person to drown off Horn Island coast, local says

"The boat operator said, "I know people that have grown up out there that have died out there. It’ll humble you very quick. I don’t care what kind of shape you’re in. Those currents can get you, and before you even realize you’re in trouble, you’re gone.”

Of course, Ben Crump -- the attorney for the Wells family -- has argued that it's unlikely Nolan drowned because he knew how to swim ... which the boat operator here is basically saying doesn't guarantee anything."

You know who drowns in oceans, lakes, pools and rivers?

People that know how to swim. 

Attendees describe massive Fourth of July party before Nolan Wells vanished and died