What do I see?
An undefined blob. Flotsam. A seat cushion. An unused flotation device. A tourist’s floating souvenir.
Oh, no! It’s a diver lying in wait in order to... NOT kill Fuddy. Or, to kill Fuddy. Or to grab away any cameras from the passengers (that didn’t work out, did it)? It’s the 10th passenger which no one saw. My, if you let your imagination run wild you can come up with all sorts of evil situations! What fun! Maybe he’s the bagman, holding all the money to pay off all the passengers so they won’t tell the truth.
Or... flotsam.