GOWANDA, N.Y. — A family hike around a New York state gorge turned tragic when a mother and father fell off a cliff and were killed and their 4-year-old son was seriously hurt, authorities said. The bodies of Amanda Green, 35, and William Green, 33, both of Buffalo, were discovered Sunday along with their injured son, Alexander, in the Zoar Valley Gorge, authorities said. Rescue crews also found sneakers and footprints that were too large for the 4-year-old and began a search.