It is a sad story if completely true. It is sad for many many reasons. There is a strong part of me that still thinks something else was going on.
You're not the first person I've seen question this on the 'net. What is it you fear happened? You don't strike me as the typical conspiracy theorist. So far the facts all point the same direction. Guys hiking in bear country where bears aren't hunted inside an enclosed fence (that I have since learned is routinely maintained), with food on them, followed by a young male bear (responsible for most human attacks), with panicked hikers running and this one guy breaking away from his 4 buddies and triggering an attack response from the bear.