I don't see how any of us here should be trying to "put this" on Ari. The information that has been posted so far does not indicate this, and SPECULATING that a death was caused by Ari will likely cause problems for her with PADI....Just exactly as any of us SPECULATING that somehow the boat did something wrong, could end their business--something I don't want on me, and I doubt most of the others here want either....If we actually KNEW something we could speculate and not care about the consequences--but we don't. One of the other people on the boat told dj that the Chinese girl( who died) had gone back to the ladder, and was just holding on to it, and adjusting gear for a while.....during which time Ari and her group descended and left the area.
Maybe this is true, maybe it is conflicting with another account. The police will be the ones to determine this.
I know NOTHING about this boat, so IF I had made any suggestion before that put blame on them, I would apologize-- If I learn what happened a week from now, and think either the boat or Ari is to blame, then I will play the blame game, THEN. Not now.
Similarly, disparaging Ari for being a Nudibranch hunter is not relevant to the accident. I would also say that if ANY instructor is doing a Refresher course DIVE on a charter boat with a student, and some divers say to the student that they want to follow ( I believe this is what the surviving girl did--just tell the student that they would likely follow--they had to follow someone) , and one of this "following buddy team" ends up staying on the ladder of the dive boat while the group descends and begins it's dive, then this diver on the ladder, is not in the group--she elected OUT if it. If this storyline is true, then suggesting anything negligent about Ari, is Defamation and more important, not morally sound behavior.
If someone wants to start another thread and discuss Nudibranch hunting and collecting, I think we can all agree this is an entirely separate matter from this thread, and has no place in assignment of blame or accident analysis for what is at hand.