COEUR D’ALENE, Idaho (AP) — A 20-year-old man’s life appeared to have begun to unravel in the months before authorities say he fatally shot two firefighters and severely wounded a third as they responded to a wildfire near Coeur d’Alene, Idaho.

Wess Roley was living out of his vehicle and his former roommate, T.J. Franks Jr., said he shaved off his long hair and started to “kind of go downhill.” The two lived together for about six months.

Roley, who authorities say took his own life after Sunday’s shootings, is suspected of killing two battalion chiefs whose firefighting careers in Idaho spanned nearly half a century combined. The deaths of Frank Harwood, 42, with Kootenai County Fire and Rescue, and John Morrison, 52, with the Coeur d’Alene Fire Department, have left their colleagues reeling, resulting in their departments adding law enforcement to every call, no matter how routine.

“I don’t know that we’re ever going to be able to guarantee people’s peace of mind, at least for a while,” Kootenai County Fire and Rescue Chief Christopher Way said

— The Associated Press