Wess Roley once lived in Phoenix, with some of his family still living in the area, according to court records and social media posts.

Officials said Wess Roley, 20, started a fire and then killed two responding firefighters. He was found dead on Canfield Mountain after a shootout.

The suspect's grandfather said that he wanted to be a firefighter and that "something must have snapped" for him to have committed such an attack.