FLAGSTAFF, Ariz. Crews searching for a missing man at Grand Canyon National Park made an unexpected discovery this summer. They found the remains of another person, believed to be Scott Walsh, who was last seen stepping off a shuttle bus at the park’s South Rim in 2015. The clothing had blended in with the surroundings, and the body was positioned in a way that made it almost undetectable, said park spokeswoman Joelle Baird.