Maybe he hot wired it?
Yeah i thought that maybe over the years, prpeople snagged tackle on it.. Wonder how many lures were hanging off it when they brought them up...
...the murky water makes a big difference, around here, even using a mask and snorkel it would likely be found. . But i guess if you cant see past your hands, no pint in recreational diving..
But they coulda found it dragging, especially with a magnet, they could determine size of it..