A St. Paul fire fighter hangs on a line from a helicopter as he rides with a person being evacuated from Lilydale Regional Park in St. Paul, Minn., Wednesday, May 22, 2013. One child on a school field trip was killed and another remained unaccounted for after a gravel slide Wednesday in a St. Paul park that’s popular with children looking for fossils, authorities said. (AP Photo/The Star Tribune, Jerry Holt)