Good find Ramm9! This "local" news report does give us some more information not contained in the official report from the NPS. Evidently the young hiker did not get separated from the group while they were all hiking, nor was he "pranked". He elected to strike out on his own from the group, planning to meet back up with them later in the day.
While this does place the majority of the responsibility for the incident squarely in his lap, IMHO it does not totally relieve the other members of the party of responsibility.
One tidbit revealed in the article that I found ironic was the name of their college. Evidently
leadership was not practiced by the members on this trip. If it had been, a leader would have either nixed the hiker's plan to strike out alone or suggested a more experienced member accompany him as Bushman5's post suggests.
Now, on a different but relevant subject ....
...BIG thumbs up to the responders who put out a super effective effort.
Back around the early 1980's I made an epic fourteen day winter canoe voyage through the Lower Buffalo Wilderness area. During that time I saw not one single human being. I experienced record lows that actually froze over the flowing river. It snowed and sometimes frigid winds howeled down the bluffs causing my downstream progress to become a painful labor against headwinds. But twice during that two weeks I saw rangers glassing me from atop tall bluffs. They weren't spying to catch me violating regulations, but surreptitiously monitoring my progress for my safety while refraining from interfering with my wilderness experience. When I finally reached my takeout, the snow and ice covering the narrow, crude access road made delivery of my truck by the outfitter service I had hired impossible. The outfitter and NPS rangers arranged to have a National Forest Service four wheel drive crew cab pick up me and my gear. Thumbs up indeed!