Off of Port Canaveral during war time,

A German uboat sunk

a cargo ship carrying war supplies.
Up until 15 years ago locals would dive on this wreck and salvage blobs of treasure.
Thompson sub machine guns would be wrapped in wax paper and then set in a box of petroleum jelly placed in wooden boxes and nailed shut.
Many of these blobs are the petroleum jelly with the machineguns still in mint condition. Some with the barrels protruding of course are all rusted away.
Friends of mine have some of them. The State later banned all diving on this wreck.
About the disappearance of Thompson, perhaps he changed his Name to Gattlin.
And the crooked lawyers in the case probably cannot figure out how they are to access the closed files, because that is not what they are good at. They, the crooked lawyers, are "good" at writting rules, that's about it.
Modifying post to answer questions: I do not have the coordinates for this wreck.
It was stalked out of Port Canaveral and sunk off of New Smyrna during world war 2. There are at least two ships that were stalked and sunk this way, that I heard about.
I used to play Silent Hunter computer game and try to reinact it, as U-boat captain.
Elderly woman told me that before the Space Center was built that she and her friends walked along the seashore, now off limits, and they saw body parts washed up on the shore from these attacks. Not so much tar washes up like it used to in the 60's from these wrecks anymore..