If a scuba diver went over Niagara Falls, could he survive?

well actually there has been one man in history to go over the falls with nothing and survive oddly enough he was trying to commit suicide and survived teh fall and the swim although hurt badly he survied and with full scuba gear on he may have some issues its not just a matter of breathing but getting your bearings and getting out of harms way the water can hurt you falling on you wether or not there are rocks