Visitors to Niagara Falls were shocked Wednesday as they watched a woman, still alive, float past them and over the edge of the falls. She didn't survive the 180-foot plunge. Boat crew members of the legendary Maid of the Mist quickly found the 51-year-old woman's body and pulled it from the water. Reuters reports that authorities acknowledge it "may have been a suicide." [Daily Mail, Reuters, screengrab of scene via]