http://www.news.com.au/story/0,10117,17084223-29277,00.html

the bridge is approx 6m - 8m, he may have landed on his stomach possibly winding himself or he may have been knocked unconcious, either way he never resurfaced. One friend found the man unconscious a metre below the water and attempted to drag him to the river's edge, but the victim was too heavy and slipped from his grip. Divers eventually found the man's body about 2pm (AEST) near one of the bridge's pylons.