AP-Investigators saw bloody paw prints around the property and paw prints on the living room window.
Recent reports show a 15-year-old grizzly bear broke through a metal door to get into the garage.
The Montana homeowner heard the noise, grabbed a gun and went out on his porch where he saw the bear.
The man told investigators the bear turned and began to approach him when he shot it in self-defense.
The man, shot and killed a grizzly bear that broke into his garage where an elk carcass was hanging.
The bear had been trapped before by researchers, but had no history of run-ins with people.