Very sad news. Condolences to John's friends and family. It's always tough when a true backcountry enthusiast doesn't make it home. Rest in peace, John.
If I'm reading the description right, it sounds like the culprit was likely the slabs above Mirror Lake that we've discussed on this thread - eerily close to where Shayam Das went over last year. It may be time for the NFS to consider signage in this area.
