 They said the one person from the group was missing, and they suspected that he had been pinned under the raft. Once the group got the raft secured, the person underneath it was unresponsive and had lost his life jacket, then going downriver, according to officials. River Patrol rangers went through the area to help the group. Friday morning, officials said a commercial rafting company found the 15-year-old man's body about 10 miles downstream from the incident.