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.

A northwest Idaho community is still reeling after a 20-year-old man was suspected of fatally shooting two firefighters and injuring another after intentionally starting a fire to ambush them.

The sniper who shot dead two firefighters in an ambush in Idaho was identified Monday as 20-year-old Wess Roley — and an eerie photo shows him delivering a sinister glare into the camera.