I'm very skeptical, but I suppose stranger things have happened. Not completely clear the pellet was the cause of death. Needless to say, not a good choice of caliber. In most cases the bear would be poaching the human.
Properly,placed pellets can take down an animal that large, but it woild have to be a lucky shot, not hitting any bone, and hitting a vital organ. They actually,have pellet rifles now that will smash through bone and take down caped buffalo even. I have a .25 cal that can be used to take down coyotes (provided the state allows the caliber for larger game), but really a .357 through 50 caliber and higher shoukd be used for larger game
See?… No one needs an “assault rifle” to defend themselves; all you need is a pellet gun. And you only need one shot as well. /s

Bella Twin, an Indian girl, and her friend Dave Auger were hunting grouse near Lesser Slave Lake in northern Alberta. The only gun they had was Bella’s single-shot bolt-action .22 Rimfire rifle. They were walking a cutline that had been made for oil exploration when they saw a large grizzly following the same survey line toward them. If they ran, the bear would probably notice them and might chase, so they quietly sat down on a brush pile and hoped that the bear would pass by without trouble. But the bear came much too close, and when the big boar was only a few yards away, Bella Twin shot him in the side of the head with a .22 Long cartridge. The bear dropped, kicked and then lay still. Taking no chances, Bella went up close and fired all of the cartridges she had, seven or eight .22 Longs, into the bear’s head. That bear, killed in 1953, was the world-record grizzly for several years and is still high in the records today. -Grizzly Guns, H.V. Stent
David slew Goliath with a stone
I think the bear coroner messed up. If the bear was shot with that air rifle, I think you better check the bear’s stomach to see if the shooter tried to cut his way out...
I have doubt that my 22 cal pellet rifle could kill a bear if it was close and shot in the side of the head.
Shot it the chest? That would be tough to do.
I claim....fake info....infection probably the cause or struck aorta.
