It would seem unlikely that Mr.Guillaume would be found swimming in the ocean if he sunk the boat
, or if he had arranged for it to be hauled off someplace. As mentioned, he was nearly dead when found. That alone should absolve him of any guilt.
Impossible to say what happened to the boat to make it sink without seeing the damage, but being a metal boat, if it came in contact with something, something fell off, or opened up, it would sink quickly.
I would hazard a guess that the mention of the portal letting in water
was secondary to the real reason water
was entering the boat. More likely something underneath, and it had filled up a good portion of the cabin
before anyone noticed, then it was too late to get a distress
signal out. Tragic ending all around.
I hope one day they can find that boat and reveal the reasons. RIP.