"An inexperienced diver would likely panic. Either panic from the stress of the situation and shoot for the surface. They may panic because their air source is missing and they can't find it. Any of those things causes a diver to shoot for the surface and those incidents often lead to death," said Umberger. "Never in a million years. Never in a million years did I think that someone would attack like that, especially from such a distance. It's not like we were close up or in their face."