A ranger’s life is dangerous business: Between a savage wilderness, sometimes savage people, and blind bad luck, there’s a lot of ways things can go wrong. Case in point: U.S. Department of Agriculture Forest Service officer Christopher Upton, 37, was shot and killed on Friday night while patrolling a stretch of Georgia’s Chattahoochee-Oconee National Forest. Hunters mistook Upton for a coyote.

While looking through the night-vision scopes on their high-powered rifles, two hunters saw the reflection in Upton’s binoculars and believed them to be the reflection of a coyote’s eyes. One fired and discovered he’d shot Upton, who was killed instantly. He immediately called 911 and has been cooperating with authorities.