Ken Kurtis
Contributor
I envision a situation in which the DM is marking the slate for the second dive and notices that he had not marked Dan in for the first dive.
Zac Araneta testified that he was the one who marked Dan back on at 9:20. Zac is also the one who did the verbal roll call a few minutes later and says someone answered "Here" when he called Dan's name. (Others have said they heard someone answer as well.) So I don't think there was really ever any question about the "9:20" notation that shows Dan back on board being made at a time other than 9:20.
He also notes that Dan is not on the deck (for the second dive), so he must have entered the water, then, too.
I think that's pretty much what happened. At the second dive site, someone realized that Dan wasn't on board and though it meant he hadn't been marked as entering the water at the second site. And they may have thought, "I'm pretty sure I saw him go in" and they wrote in "11:17" on the slate.
The problem is that no one has admitted to doing that. This case would be a little different if whoever wrote that down simply said, "I did it, here's why, and it was wrong." It also might have made a difference day-of had someone said that and then added "Are we sure Dan was at the second site?"
In that scenario the DM covers up for his failure to make a couple of check marks rather than his failure to note a missing diver. He does not realize the actual situation until Dan fails to come up from the second dive.
I think you've hit it on the head. And like they say, the coverup is frequently worse than the act you're trying to hide.
Note that I am not excusing the DM--it just seems a plausible way of explaining his actions.
I agree. No maliciousness but simple human fallacies and then not owning up to it.
- Ken