To answer a few of your questions,

1. (HBP) He was using 100 lb SS Braised wire. And a meat line.

2. He is not a "loon" he has caught 10,s of thousands of fish, I know because I used to go out with him catching specimens on occasion and have fished the same waters with him that he's talking about. By the way I have known him for 25+ years. He is a quiet guy and does not boast about his fish that he catches

3. He used to catch all of the six gill sharks for the P.D. Aquarium so I think he knows his Sharks.

In closing he chose not to let this info out because he knew no one would believe him, it's my understanding that one of the employees at Narrows Marina called it in.
salmonbelly he is 70+ years old I don't think he is pulling a prank!

Just my personal experience fishing with him over the years.