A+hunter+aimed+his+gun+carefully+and+fired.

A hunter aimed his gun carefully and fired. Seconds later, he realized his mistake. Minutes later, he was dead.

Solution #1 It was winter. He fired the gun near a snowy cliff, which started an avalanche. Solution #2 He shot an elephant with a low caliber rifle. Not powerful enough to kill it, the elephant became enraged and trampled him.