We wanted to help too, but they were way faster hikers than us, and they had combed the entire area for at least 7 hours with no sign of him. I had my SAR beacon with me, and they could have used it, but it would have sent my emergency contacts a message saying i was in dire need of help. They chose not to use it after all.
I was WAY out of my comfort zone there, and I worried about our own safety to be honest. It sounds stupid, i know, but there were so many unknowns that could have been big trouble for us. At this point we were 45 miles from the nearest trailhead, and if we had a week long winter storm, it would pin us down, we'd lose the trail, and we'd run out of food. I wasn't very relaxed on this trip, especially since I was the trip leader, and I took responsibility for everyone's safety. Man, it was tough seeing those guys with a lost friend though.