A man dressed in a suit dies in a room. He sustains no injuries apart from a small cut on his shoulder, and although many people pass by, the body is never discovered.
Is it any particular sunken ship, like the Titanic?
No.
so did he actually get injured before he died?
Yes.
if so, was it intentional by some body?
Nope.
or was he alone?
Yes.
and was his name John?
Ah.... maybe?
did he like drawing?
Probably irrelevant.
Did an object in the ship fall onto his shoulder to cause the cut?
No.
Was he far enough underwater that his suit needed to be pressurized?
Nah.
Was he in a submarine of some sort?
Nope.