This happened just a couple miles from me, and what I heard was that someone saw what they thought was blood on the elk's antlers. It was a neighbor that called the sheriff and reported it as an attack/goring by the elk.
Maybe when the elk went to check out the guy, it looked like it was attacking him, I don't know... very strange... It shouldn't have been released to the media until they knew for sure what happened.
I currently hold a predation elk tag. Elk are damaging some farm property, so IFG has issued some predation hunt tags. Even on a predation hunt - the elk critters around here are still so elusive that the thought of an elk coming up and nudging a human being seems bizarre.
Latest reports indicate the man had heart trouble and it was a heart attack that killed him and not the elk. Possibility that a charge by the elk scared him into the heart attack, but at least the "official" cause of death is being listed as heart failure.
Try to put your tree stand in a tree with plenty of background cover, keep the prevailing winds for that time of the year to your face, and take care of those pesky squeaks and creaks your stand may have developed while sitting in the shed. A good treestand lube can be made by heating petroleum jelly until it reaches a liquid form. Some hunters have reported success by including a cover scent in this mixture before applying it to their stands.