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

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.

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