If you look carefully, you could see a diver is kinda playing with a stingray and at the end of this video clip it seems that something had gone terribly wrong with that diver.
I do not know whether this video is genuine or not because everyone were in their full scuba gears and mask is covering their face, there is no way to tell who is who, so its entirely up to you to judge for yourself.
Its almost 2 weeks since he left us, Rest in Peace Stevo buddy!
P.S. : If you noticed, Steve Irwin is actually a blonde guy and the fler in the video? well ... you see for yourself :P