So sad. Absolutely heartbreaking.
There are things about this story that i just cannot make sense in my head. Ive never had this type of encounter but i just cannot see how tossing a gun over to your guide is better then firing a round either at the bear or at least close to it. If he couldn't get a shot off at it why not just run at it point blank? Maybe he just freaked out and chose the flight in the flight vs fight response. Not judging because who knows, I would maybe do the same thing and maybe he was already severely wounded.
Id be curious also to know if where they found him, if he had the gun on him. He must have tried walking himself out. I'm not sure he could have been drug 1/4 mile by the bear.