The man who police believe killed two Idaho firefighters responding to a brush fire after starting the flames himself had wanted to pursue a career in the fire service, his grandfather told CNN.

The gunman accused of fatally shooting two firefighters and wounding a third while they responded to a wildfire in Idaho has been identified as 20-year-old Wess Roley.

A brush fire was intentionally set to lure firefighters to an ambush in Canfield Mountain, Idaho, officials said. Officials said the gunman, who opened fire on the fire crews, was found dead after an hour-long search,