Yellowstone Park couple "provoked" the grizzly bear that killed the man..

It seems.

Park authorities decided to let the animal remain free as its reaction was deemed normal for a surprise encounter.

Park authorities had previously thought the couple reacted correctly...

But after an investigation, bear researchers and wildlife agents say the pair's running and screaming helped spur the bear into "a sustained pursuit of them as they fled".

If you run and scream... you're asking for it. Remember: The bear is a bear.