Apparently you haven't followed the timeline of the media reporting too closely. At the time I posted that the only information was "it was a shark". No mention of a bull shark came until the day after I posted that.This guy knows the difference between tiger and bull shark. If he says it was a bull, it was a bull.
Also, I never ever suggested the guy was doing anything illegal. I suggested he was probably spearfishing. I know spearfishing isn't illegal in and of itself - only the capture of certain animals, none of which I ever suggested that he was taking. That doesn't change the fact that spearfishing is a risky exercise to engage in, especially in waters with a known shark population. If that's a risk the guy is willing to take, then that's entirely up to him.